biology essay with answers

Free Biology Essay Examples & Writing Tips

Don’t know what to write about in your essay on biology? Looking for good biology essay examples for inspiration? This article has all you need!

A biology essay is a type of academic paper that focuses on a particular topic of biology. It can discuss animal life, cycles in biology, or a botanic subject. You will need to demonstrate your critical thinking skills and provide relevant evidence to support your perspective.

On this page, you will find examples of biology essays. You will also find here tips and topics prepared by our experts . They can assist you in nailing your short or extended essay.

Areas of Research for Biology Essays

If you’ve been assigned to write a biology essay, you probably know which area of research you have to choose. However, it might be beneficial to explore other available scopes. It’s useful for both interdisciplinary study and the cases when you are free to pick your area of research. In this section, let’s figure out what you can study in biology.

Here are biological areas of research you should be familiar with:

• Cancer Biology studies this type of disease to prevent, detect, diagnose and cure it. The ultimate goal of such biologists is to eliminate cancer.
• Cell Biology is a branch that studies the structure, function, and behavior of cells. Here, biologists study healthy and sick cells to produce vaccines, medication, etc.
• Biochemistry is an application of chemistry to the study of biological processes on cell and molecular levels. It is a cross-discipline between chemistry and biology. The focus is on the chemical processes of living organisms.
• Computation Biology is a study of biological data that develops algorithms and models to understand biological systems. Here, scientists either work for institutions or research for private enterprises.
• Genetics is an area that focuses on the study of genes and genetic variations for health benefits. It looks at the way DNA affects certain diseases.
• Human Disease is an area within which scientists study different diseases. The field covers cancer, developmental disorders, disease genes, etc.
• Immunology is a branch of biology that focuses on immunity. Immunologists look at the way the body responds to viruses as a way to protect the organism.
• Microbiology studies all living organisms that are too small for our eye to see. It includes bacteria, viruses, fungi, and other microorganisms.
• Neurobiology is the study of the nervous system. Biologists examine the way the brain works and look into brain illnesses.
• Stem Cell and Developmental Biology seeks to examine how the processes behind stem cell’s ability transform cells. The biologists in this area use the power of stem cells to model human illnesses.

Essay on Biology: Writing Tips

Want to know how to start a biology essay? Wondering about the best way to write your essay on biology? Then check out the following tips.

When you’re writing about biology, pay attention to the following features:

• Introduction . Just as in any other form of academic writing, the first section of your paper introduces the subject. Here, explain why your ideas are relevant to biology as a science.
• Thesis Statement. The final one or two sentences of the first paragraph should include your original hypothesis and experiment. You will be proving them in the main body. You do not have to include the results as the reader will encounter them later. If you’re struggling with this part, try our thesis generator .
• Main Body. In this part, write about all the experiments in detail. Often, teachers require to include visual aid to prove your point. For Zoology, Anatomy, Botany, it is pretty easy to find some photos and illustrations.
• Conclusion. Here, restate your thesis. Reemphasize the most critical aspects described in the main body. You can do it by using our summarizing tool . The goal of this last paragraph is to leave an everlasting impression on the reader.

Thank you for reading our article. We hope you found it helpful. Share it with your class peers who also study biology. Additionally, have a look at the biological essay examples below.

813 Best Essay Examples on Biology

Grass and its importance, the benefits of animals to humans essay.

• Words: 1166

Biology of Grasses: Description and Importance

The effect of temperature on amylase activity.

• Words: 1293

Ubiquity of Microorganisms

• Words: 2210

Effects of Vinegar on the Germination Rate of Mung Beans Seeds

• Words: 1750

Anaerobic Respiration and Its Applications

• Words: 1274

Seed Germination Experiment: Results and Discussion

Bronfenbrenner’s bioecological system theory.

• Words: 1827

Mung Seed Germination Patterns under Varying pH Values

Browning reactions explained, mitosis and meiosis in onion root tip.

• Words: 1691

Strawberries History

• Words: 1484

Botany and Taxonomy of the Onion

• Words: 2414

Dark or Light Skin: Advantages and Disadvantages

Pets and people, nanobiotechnology, its advantages and disadvantages, substrate concentration and rate of enzyme reactions.

• Words: 1730

Seed Germination and Osmosis

• Words: 1127

Similarities and Differences of Photosynthesis and Cellular Respiration

Aspects, importance and issues of biodiversity, lemon, its origin and production.

• Words: 1115

Transpiration Process in Plants

The c-fern plant laboratory experiment.

• Words: 1101

Ubiquity of Bacteria: Laboratory Activity

• Words: 1496

Vitamin A: Description and Usage

Description of mitosis and meiosis, corn plant’s developmental stages, osmosis through a potato slice dipped in solutions of varying concentrations.

• Words: 1075

Eukaryotic and Prokaryotic Cells: Key Differences

Ethnobotanical uses of plants.

• Words: 1938

Dugesia, a Planarian With Its Peculiar Characteristics

• Words: 3207

Rabbit Muscular System Dissection Report

Cell organelles, their functions, and disease.

• Words: 1195

The Digestive System in the Human Body

Understanding the effects of quantity of light on plants growth.

• Words: 1089

Importance of the Brain in Human Body

Mitosis in onion root and whitefish blastula, biochemistry dogmas and their impacts on biotechnology, vaquita – endangered species.

• Words: 1367

The Function and Structures of the Human Heart

Different ecosystems and living things, characteristics of adult development.

• Words: 1311

Earth Atmospheric Evolution

• Words: 1719

A Study of the Brine Shrimps and Their Natural Environment

• Words: 1937

Olfactics and Its Importance for Living Beings

• Words: 1446

Common Biochemical Cycles

Wildlife management and extinction prevention in australia.

• Words: 2902

The Human Family Tree Development

The thermoregulation is and its importance, membrane hands-on laboratory report.

• Words: 1176

Responsible House Plant Keeping

• Words: 2262

Cell Counting and Measurement Under Magnification

• Words: 1641

Pollutants Effects on Cellular Respiration Rate

• Words: 1434

The Insect Effect on Human Life

Archaea and bacteria prokaryotes dichotomous keys, rosalind franklin: the discovery of the dna structure, basic and applied biology: key differences, is earthworm beneficial or harmful to humans, biowarfare and bioterrorism: history and origin, biology lab report: biodiversity study of lichens, neuroethics, its meanings and main topics, homeostasis and regulation in the human body, the integumentary and the skeleton system.

• Words: 1100

Digestion, Absorption and Assembly of Proteins

• Words: 1456

The Characteristics and Importance of Nervous System

• Words: 1705

Climate Change and Threat to Animals

Co-evolution: angiosperms and pollinating animals, consequences of orange juice on the germination of mung bean seeds, photosynthesis as a biological process, description and general information about stink bugs, forensic procedures: hairs and fibres.

• Words: 2067

Human Circulatory System and Evolution

Photosynthesis and cellular respiration, “the egg and the sperm analysis” by emily martin, microbiological methods for assessing soil quality.

• Words: 3861

Vegetation Monitoring From Space

• Words: 6072

Concept of Bioethics in Society

• Words: 2735

Melanin Theory as a Pseudoscientific Claim

• Words: 1645

Bioremediation Technology

• Words: 1604

Anaerobic Capacity: Power Endurance and Fatigue Index

Life in the bottom of the ocean and its protection.

• Words: 1529

Molecular Biology. Production of pET28b and EGFP Clones

• Words: 4609

Biology: Analysis of Egg Experiment

Operant and respondent conditioning, non-trophic interaction in marine species, nervous system: the main functions, digestive journey of cheeseburger, microbial growth and effect of ph on it.

• Words: 1330

Environmental Microbiology Overview

• Words: 3298

The Brain: Structure and Functions

The process of a prenatal child’s development, cane toad: introduction and threat.

• Words: 1018

Yeast and the Fermentation Process

Lipids: fatty acids and glycerols, telescope and microscope discovery combo.

• Words: 1932

History Of Biotechnology

• Words: 1908

Evolution of Predator and Prey Pairings

Epithelial tissue: structure and functions, case study: human body water balance, researching the physiology of the eye.

• Words: 1122

DNA Barcoding Sequence Analysis of Unknown Plant

• Words: 1315

The Kingdom Fungi: The Structure, Characteristics

The anatomy and physiology of the nervous system of a rat.

• Words: 1612

Plant Resource Allocation: Materials and Methods

• Words: 1182

How SCOBY Changes Its Environment: Lab Experiment

• Words: 1214

Microbiology and Its Role in Healthcare

Microbiology: zygomycota, ascomycota and basidiomycota, microbiological studies, applications, and current discoveries, brine shrimp habitat, the genus rosa’s adaptation to the environment.

• Words: 1144

The DNA Extraction Procedure: Scientific Experiment

Invertase enzyme: description and role.

• Words: 1151

Natural Sciences. The Phenol Red Broth Test Experiment

• Words: 1156

Psychophysics: Definition & Fundamentals

• Words: 1606

A Peptic Ulcer: Medical Analysis

• Words: 1185

Plant Growth and Development With Music

Reproductive isolation and its potential effects, soil impact on the growth of plants.

• Words: 1227

Marine Life in United Arab Emirates

• Words: 1474

Find what you need to study

Biology Short Essay Free Response Questions

10 min read • june 11, 2020

Jessica Nadzam

Overview of the Short Essay (FRQ) Questions

The AP Biology exam used to consist of eight long-form free response questions, but in 2019 it was redesigned to consist of only six free response questions. Two of those questions are in the “short” form, and these consist of 50% of the free response score, or 25% of your total score. 

Long story short, those four questions may not be as long as the first two, but they still pack a big punch on your score.

The short essay questions will always be the last four on your exam. They’re very different than the first two in length and point-value, but you can use the same techniques as the others. You still need to know the content and utilize the “essential verbage” to write an appropriate response, but this response will be shorter and take less time to complete. 

You have to write in blue or black ink (for all things that are good, please do not use a pencil), so have a few of your favorite pens ready. You’ll have lots of pages to write on (if you use all of them, you may have written too much), and you’ll be given a copy of the Formulas and Equations Sheet for any calculations you need to do. 

Questions are 4 points apiece, and they typically contain content and problems concerning multiple content areas. Since they are shorter they are less likely to cover multiple topics, but it does still happen. You could initially respond about protein structure in the first part and then end up describing the evidence of evolution by the end of the question. There’s a lot of points on the table, and CollegeBoard will make you work for them. 

Response Grading (from an AP Reader)

There are 16 points for the last four questions of the FRQ test, and they make up 25% of your AP Biology score. So, how are those points calculated and scored? CollegeBoard is fantastic at writing rigorous questions, but they’re also very good at training their graders (called AP Readers) how to objectively score the questions. Readers spend a whole day training to grade just two of the questions (they don’t get to look at the other four at all), and then spend a whole week grading only those questions, eight hours a day . 

A well-oiled machine may be an understatement. The bottom of the line is, AP Readers know exactly what they’re looking for when they’re grading. They read a hundred tests a day (minimum), and if you don’t have the answer they’ve been told is the right answer, they tend to move on pretty quickly. 

While this seems intimidating, it’s actually good news for you - but only if you pay very close attention to the next section on verbiage. You see, the bolded verbs in AP free response questions are just hints as to what AP Readers are looking for in an answer. If you know those verbs backwards and forwards, you will know what type of response AP Readers want. And if you know that, you don’t have to worry about writing something that may be right content-wise, but still missing a point on a technicality. 

Essential Verbiage

There are a lot of verbs used in AP exams to pose questions for students to ponder and rip their hair out over. 

To keep all that hair on your head, we’ve made you a table. It’s pretty easy - if you know exactly what to do when you encounter each bolded verb , you know exactly what to do to answer the question the way the Reader wants to see it. You know how many points it’s worth, and therefore can figure out how much time to spend on it. 

Side note - keep in mind that if a question asks you do something more than once - maybe to describe two factors or explain three phenomenon, you should multiple that # Points by however many things it expects you to do. 

Strategies for 5able Responses

Do you want a 5 on this test? Then here’s what you need to know and be able to do:

Read. The. Question. Carefully. Seriously. You don’t know how many students miss points because they were skimming and missed a critical word. It’s a heartbreaker for Readers, who want to give you that point, but can’t. Also, read the directions carefully. Your papers always say something about how responses on the actual question page will not be scored. Do not write on the question page . You can use it for brainstorming or outlining as scratch paper, but if your words aren’t written on lined paper or a graph or table, they won’t be scored. So make sure you put your answers in the right place! 

Complete. Sentences. Unless it’s an identify or construct or calculate question, you need a capital letter and a period, or the Reader will not grade that response. Period. Outlines, bulleted lists, and drawings won’t be graded unless specified in the question’s directions. 

Circle your bolded verbs . Find them. Figure out which are worth the most points, the least points, will take the longest, will be the quickest, etc. Then, figure out which ones to answer first. 

When you start the test, you don’t have to go in order. If your mind goes blank on question one, skip it . It’s not going anywhere, you can come back to it. But don’t waste time on it when there are others you can definitely answer later in the booklet. 

The identify and graph/draw questions are some of the quickest to respond to because they don’t require complete sentences, and the answers are usually very quick to come up with. Answer these questions first to get them out of the way. 

Time yourself. You get 90 minutes, but it goes by fast. Keep a digital watch that does not beep , and refer to it regularly. Plot how long you want to spend on each question so you don’t waste time in one area and lose points on another question you could have easily answered. Since the short questions are worth half your free-response score, you shouldn’t spend any more than 45 minutes on these four questions, or about 10-11 minutes apiece. 

This is not AP English. The graders are not English teachers. They don’t care how pretty your introduction is or how ~thought-provoking~ your thesis statement is. They just want to finish your paper and move on, so don’t ramble on and on. Skip the fluff and go straight to the point. Don’t restate the question or introduce the topic or regurgitate random knowledge - it won’t get you extra points, it’s a waste of time for you, and the Readers get bored sorting through all your thoughts and writing. 

Label your responses . While you still have to write in complete sentences, please label each response with a, b, c, etc. if the essay question has multiple parts. You don’t even have to go in order, but this helps Readers find your answer so they don’t have to sift and guess what you meant.

COMMIT TO YOUR ANSWER . Readers don’t like wishy-washy papers. Erase the words “might” and “possible” and “I think” from your vocabulary. You could be completely wrong, but if you’re writing about a purple hippopotamus, COMMIT to that purple hippopotamus. Don’t say “I think the purple hippopotamus might possibly maybe do photosynthesis if it feels like it.” That’s wishy washy, and Readers don’t accept that as an actual answer, so they won’t give points for it. Be committed , and loudly proclaim “This purple hippopotamus does photosynthesis!” Ta-da! 

If possible, always give an example. We said earlier not to mind dump and regurgitate, but examples are usually a good way to sweep up an extra point or two if you have budgeted your time wisely and can accurately apply it to the scenario. 

So, now that you know what the Readers are looking for in your responses, let’s talk about the types of questions they will ask you. 

Question Types

The short version of the free-response test has four questions, and each of those four questions has a distinct question type. These are based on “science practices” that CollegeBoard expects students to develop to be more ~well-rounded~ and ~critical thinkers~. Luckily, these questions go in a distinct order, too. Those types and order is as follows:

Scientific Investigation 

Conceptual Analysis

Analysis of Model or Visual Representation 

Analysis of Data 

With this, you can get a good idea of what to expect on the 3rd, 4th, 5th, and 6th question. And if you’re used to studying for the science section of the ACT, you probably recognize these question types. It’s all about analyzing graphs and tables, pulling information from passages, and performing analysis on data. 

Oh, while remembering all that AP Biology knowledge your teacher tried to get into your brain for the past 6-9 months. No pressure. 

Let’s break down what each of those question types is asking for, and the best ways to respond to maximize your time and your points. 

Scientific Analysis - this question will describe a lab experiment scenario, and expect you to be able to describe the biological concept or process involved, identify an experimental procedure, predict results, and justify your prediction.

Conceptual Analysis - in this question, CollegeBoard will present a question that describes a real-life scenario. It will relate that scenario to a biological phenomenon and tell you something has disrupted the process. To get all four points, you will have to describe the biological process that is happening, explain that biological concept, predict the causes and effects of the disruption, and justify your prediction. 

Analysis of Model or Visual Representation may seem like two separate question types, but they will ask you to do the same thing. Both will give you a description of some biological scenario with a visual model. You will be asked to analyze that model, and then describe different biological characteristics of the model, explain the relationships between the different characteristics, identify or draw the relationships within that model, and then explain how the scenario relates to a larger idea or concept. 

Analysis of Data - for the final question of the exam (and then you’re freeeeee !), you will receive data on a graph or table. You will then have to describe the data (twice), evaluate a hypothesis or prediction using the data, and then explain how the experimental results relate to some biological concept. 

These descriptions can seem a bit confusing on their own. Therefore, some examples are provided below. 

Sample Question 1 - Scientific Investigation  

A forest ecosystem has a delicate balance of life. Autotrophs, heterotrophs, and decomposers live together and exchange resources to survive. Sometimes their relationships are mutually beneficial, but sometimes they can be harmful for one species and beneficial for another. Buteo jumaicensis , or the red-tailed hawk, consumes smaller organisms such as small reptiles and small mammals. Recently, the ecosystem has been disturbed by deforestation of pine trees. Hawks typically roost on the crowns of tall trees, and as a result their habitat begins to diminish. 

a) Describe the niche of the red-tailed hawk. 

b) Identify the type of relationship shared between the red-tailed hawk and a common forest mouse. 

c) Predict the short-term impact of the decline of the red-tailed hawk due to deforestation, and how it will impact the rest of the ecosystem. 

d) Provide reasoning to justify your prediction. 

Sample Question 2 - Conceptual Analysis  

The lac operon model is a common phenomenon used to demonstrate the regulation of gene expression. In this model, a gene is essentially turned “on” and “off” to produce proteins only when they are necessary. This allows a bacteria called Escherichia coli ( E. coli) to metabolize lactose. 

a) Describe the gene expression process from DNA to protein. 

b) Explain why operons are an evolutionary advantage over allowing genes to undergo transcription and translation constantly. 

c) Although less commonly used for demonstration, the trp operon is another bacterial operon found in E. coli. Predict what would occur if a lac repressor was used on the trp operon. 

d) Provide evidence to support your prediction. 

Sample Question 3 - Analyze Model or Visual Representation  

Signal transduction pathways occur when cells receive signals from outside their membranes, and transduct those messages through the cell to a predetermined location. These signals are used for a variety of reasons including growth, division, mating, protein production, and more. In order for a cell to experience signal transduction, it must receive some signal that binds to a receptor and triggers the pathway. 

a) Referring to the figure, predict a possible response that may occur as a result of this signal. b) Describe the steps of the signal transduction pathway that must occur to elicit a response. 

c) Sometimes secondary messengers may enter the cell only after a ligand has bound to a receptor. Explain why secondary messengers may be necessary for cell signalling. 

d) Identify the ligand in the figure. 

Stay Connected

© 2024 Fiveable Inc. All rights reserved.

AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.

Woolton Tutors

One-to-one tutoring in science, maths and languages

How to answer A-level Biology essay questions

The Synoptic essay questions in paper 3 of the AQA A-level biology course carries 25 marks, so can make a big difference to your overall grade. The essay encourages you to think across different topics (some call this “synoptic” or “holistic” thinking). This is also valuable for other areas of the exams, particularly the application questions .

Here are a few tips for tackling your A-level biology essay: (As an example, Let’s use the title “The importance of movement in cells and tissues”)

Think broadly…

Essay titles are deliberately vague to give you the chance to show your knowledge in a variety of topics. To help you to choose what’s most relevant, look out for subjective words like “movement” and “cells”. Think of the possible alternatives. “Cells”, for example, hints that you could discuss plants, animals, single-celled organisms etc. in your essay. “Movement” could mean short distances (across a membrane) or much further (circulation or mass flow) or even the whole tissue moving (phototropism).

Visualize and catastrophize!

If you can’t think of enough topics for an “importance” essay, flip the question around – what would happen if movement in cells suddenly ground to a halt? Or if ATP suddenly vanished, or our cells were robbed of their ions? Sometimes catastrophizing in this way frees up thoughts, and helps you see what is really important. Another way is to picture every diagram in your notes or textbook that features the thing-that’s-important-in-the-question. If it’s in a diagram, it could go in your essay.

Pick your strongest topics

It’s possible to drop marks on the essay for scientific errors. With that in mind, even if you have lots of ideas for things to include, always pick the topics you can write confidently about. For bonus marks, try to order them in a way that “flows” like a story. Take care to use A-level (and not GCSE) language too.

Keep an eye on the question

While you’re writing, keep asking yourself “Where am I placing the emphasis?”. If the essay is about movement, perhaps you don’t need a whole page about nervous responses, only the bits where movement is involved – sodium ions flowing through channels, waves of depolarisation etc. Movement is the focus of the essay, after all, not neurons. Always ask yourself “Does this sentence fit with the title of the essay?”

Use outside knowledge

The top marks for the essay are reserved for displaying “evidence of reading beyond specification requirements”. Often you can drop recent scientific research or news into your writing – how vaccines tackle COVID might work in an essay about viruses, for example. I often encourage students to have a quick look at the news pages of New Scientist pages (eg https://www.newscientist.com/subject/health/ ) before paper 3 for inspiration – you don’t need to spend ages doing this, just long enough to have one or two ideas up your sleeve…

Good luck with your essay!

If you’d like to work through some example essay questions, please get in touch with me at Woolton Tutors (or Woolton Biology) and we can set up some online biology tutoring sessions.

Best wishes,

Dr John Ankers

Specialist online A-level biology tutor

www.wooltontutors.co.uk

Share this:

Author: Dr John Ankers

Dr John Ankers is a tutor, coach and writer. For writing and consultancy work, please contact me at [email protected] View all posts by Dr John Ankers

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Notify me of follow-up comments by email.

Notify me of new posts by email.

• April 25, 2023
• No Comments

Mastering A Level Biology Essays: Smart Tips and Unbeatable Examples

[email protected]

Introduction

A Level Biology is a challenging but rewarding course that covers a wide range of topics, from DNA and genetic inheritance to ecosystems and biodiversity. The key to success in this subject lies in understanding and applying the core principles of Biology and expressing your understanding in well-structured, coherent essays. In this article, we will provide you with some essential tips for writing outstanding A Level Biology essays, as well as presenting clear examples to help you master the essay-writing process.

• Understand the essay question

The first and most important step in writing an A Level Biology essay is to clearly understand the question. Break down the question into its key terms and implications, and ensure you comprehend what the examiner is asking you to discuss. Make a note of any key words or phrases that should feature in your essay, as these will help you structure your response and ensure you cover all the necessary points.

• Plan your essay

Before you begin writing your essay, take the time to plan your response. Create an outline that maps out the main points you want to make, as well as the order in which you will discuss them. This will enable you to develop a logical and coherent argument that addresses all the key aspects of the question.

• Include an engaging introduction

An effective introduction is crucial to grabbing the reader’s attention and setting the tone for your essay. Begin with a general statement that links to the essay question, and then narrow down your focus to present your main argument or line of inquiry. Finish your introduction with a clear thesis statement, which outlines the central points you will cover in your essay, demonstrating a solid understanding of the topic.

Example: The discovery of DNA and the subsequent advancements in genetic research have proven instrumental in understanding the role of genetics ininheritance of traits and diseases. This essay will discuss the role of genetic inheritance in the development of several human diseases, namely: Cystic Fibrosis, Huntington’s disease, and Alzheimer’s disease, as well as the ethical implications surrounding genetic testing and treatment.

• Use specific examples to support your arguments

In A Level Biology essays, it is essential to provide examples that demonstrate your understanding of the material and support your claims. Try to include a range of examples from different areas of the subject to show that you have a comprehensive and in-depth understanding of the course material.

Example: Cystic Fibrosis is an example of a genetic disorder caused by a mutation in the CFTR gene, which results in thick and sticky mucus production in affected individuals. This condition can lead to respiratory and digestive complications, illustrating the significant impact of genetic inheritance on an individual’s health.

• Synthesize information from multiple sources

To demonstrate a high level of understanding, A Level Biology essays should integrate information from various sources, such as class notes, textbooks, and scientific articles. Be sure to support your ideas with specific references to the source material, and use your own words to explain the concepts in a clear and concise manner.

• Address counterarguments and controversies

In any scientific field, there are often debates and controversies surrounding key concepts and theories. To show a comprehensive grasp of the subject matter, be sure to address counterarguments and discuss opposing viewpoints in your essay.

Example: While genetic testing for diseases such as Huntington’s has the potential to provide valuable information for individuals at risk, there are ethical concerns about the potential misuse of genetic information by employers, insurance companies, and even government entities. Weighing the benefits of genetic testing and treatment against these ethical concerns is an ongoing debate within the scientific community.

• Write a strong conclusion

To wrap up your essay, restate your main argument and summarize the key points you have made. Provide a clear and concise conclusion that demonstrates the significance of your argument and its implications for the broader field of Biology.

Example: In conclusion, the role of genetic inheritance in human diseases, as illustrated by Cystic Fibrosis, Huntington’s disease, and Alzheimer’s disease, underscores the immense potential of genetic research to improve our understanding of human health. However, as we continue to advance our knowledge and develop new treatments and testing methods, it is crucial that we remain conscious of the ethical implications that come with such advancements in order to protect individuals’ rights and liberties.

• Proofread and edit your essay

Finally, make sure you thoroughly proofread and edit your essay to correct any grammar, spelling, or punctuation errors, and to ensure that your argument flows smoothly and logically. Consider asking a friend or peer to review your essay and provide feedback – a fresh perspective can help you identify areas for improvement that you may have overlooked.

In summary, mastering A Level Biology essays involves understanding the essay question, planning a clear and logical response, using specific examples and evidence, synthesizing information from multiple sources, addressing counterarguments and controversies, and crafting a compelling introduction and conclusion. By following these steps and using the examples provided, you will be well on your way to delivering high-quality, insightful essays that demonstrate an excellent understanding of the complex and fascinating world of Biology.

Good luck, and happy essay writing!

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Save my name, email, and website in this browser for the next time I comment.

Related Posts

The importance of biology o’level and a’level past papers in the malta education system.

O’levels and A’levels are both types of secondary school qualifications that are recognized worldwide. O’levels are typically taken at the age of 16, while A’levels

How Hard is Biology A Level: A Comprehensive Guide

Introduction: Biology A Level is a popular subject among students who desire to pursue careers in life sciences, medicine, and related fields. However, it is

Is A-Level Biology Harder Than A-Level Maths?

Introduction When it comes to choosing subjects at A-level, students often find themselves perplexed about which subjects to choose. This particularly holds true for subjects

Most Common A-Level Biology Questions By Topic

Introduction A-Level Biology is a rigorous subject that tests students’ knowledge and skills in various areas, ranging from cell biology to ecology. To excel in

A Level Biology: A Comprehensive Guide to Viruses

Introduction Viruses have always been a topic of great interest and controversy in the world of biology. As a fundamental concept in A-Level Biology, understanding

AP Biology Practice Exams

We have links to all of the best online AP Biology practice exams. These resources will provide thousands of challenging practice questions to work through. Choose from the listing below to get started with your test prep right now!

AP Biology Practice Test

Varsity tutors, biology (mader) 8th edition, ap biology math review, official practice test, college board 1999 exam, albert ap biology practice, biology (mader) 10th edition.

AP Biology | Practice Exams | Free Response | Notes | Videos |  Study Guides

Your Best Education, TSC & Latest News Website

Biology KCSE Essay Questions and Answers Paper 2; Over 1,000

KCSE BIOLOGY PAPPER TWO 231/2 -ESSAYS FROM 1995 -2023

  a). Describe how insect pollinated flowers are adapted to pollination ( KCSE1995)

• Progesterone
• Luteinizinghormone
• Describe how excretion takes place in: ( KCSE1995)
• MammalianKidneys
• Greenplants
• a).Explainhowthemammalianskinisadaptedtoperformitsfunctions (20marks; KCSE 1996)

b). Describe how new plants arise by asexual reproduction (20 marks; KCSE 1996)

• a). What is parasitism? (KCSE1997)

b). Describe how the tapeworm is adapted to a parasitic mode of life (KCSE 1997)

• a). What is meant by the term digestion? (KCSE1997 )

b). Describe how the mammalian small intestine is adapted to its function (KCSE 1997)

• Discuss the various evidences, which show that evolution has taken place (20 marks; KCSE 1998)
• Explain how the mammalian intestines are adapted to perform their function (20 marks; KCSE 1998)
• a). Describethe:
• Process of inhalation in mammals ( KCSE 1999)
• Mechanisms of opening and closing of stomata in plants (KCSE1999)

b). Explain how the various activities of man have caused pollution of air (20 marks; KCSE 1999)

• a). Describe the role of hormones in the human menstrual cycle (20 marks; KCSE2000)

b). How are leaves of mesophytes suited to their functions (20 marks; KCSE 2000)

• a). State the functions of the following parts of the mammalian ear; (KCSE2001)
• Tympanicmembrane
• Eustachiantube
• Earossicles

b). Describe how semicircular canals perform their functions (KCSE 2001 )

• a). Describe the process of fertilization in a flowering plant ( KCSE2001)

b). State the change that take place in a flower after fertilization ( KCSE 2001)

• a). Describe the role of hormones in the growth and development of plants (20 marks; KCSE 2002)
• a). Name three types of skeletons found in multicellular animals ( KCSE2002)

b). Describe how the cervical, lumbar and sacral vertebrae are suited to their functions

Also read..

BIOLOGY FORM ONE SUMMARIZED NOTES

Biology Form one to four exams, notes and revision materials

BIOLOGY FORM FOUR SUMMARIZED NOTES

BIOLOGY FORM TWO SUMMARIZED NOTES

Biology notes form 1-4; Free KCSE downloads

Free Biology notes, revision questions, KCSE past Papers, Exams, Marking Schemes, Topical revision materials, Syllabus and Many more

BIOLOGY FORM ONE NOTES FREE

BIOLOGY FORM THREE SUMMARIZED NOTES

Biology notes (Updated form one to four free notes)

Biology Simplified Notes Form 1 to 4 Free

Biology Free notes and Exams for Form one to Four

BIOLOGY KCSE MARKING AND SETTING TIPS IN LINE WITH EMERGING TRENDS

Biology topical questions and answers

Biology KCSE Past Papers and all marking schemes free downloads

Biology free lesson plans for all topics (Form one to four)

CBC Senior School Subjects (Grade 10, 11, 12)

CRE free lesson plans for all topics (Form one to four)

History and Government free lesson plans for all topics (Form one to four)

Free Secondary School Exams and Marking schemes (Form 1 to 4)

Syllabus For All Secondary Schools Per Subjects (Latest Syllabus)

English free lesson plans for all topics (Form one to four)

Free Physics notes, revision questions, KCSE past Papers, Exams, Marking Schemes, Topical revision materials, Syllabus and Many more

FORM 4 EXAMINATIONS AND MARKING SCHEMES: ALL SUBJECTS FOR KCSE CANDIDATES- OVER 1,000 PAPERS

Form 4 Term 1-3 Free Exams and marking schemes; All subjects downloads

FORM 3 ALL SUBJECTS EXAMS, ASSIGNMENTS: FREE TERM 1-3 EXAMS & ANSWERS

Updated Secondary School Notes form one to four Free Downloads (All subjects Comprehensive Notes)

Physics free lesson plans for all topics (Form one to four)

(KCSE 2002)

• a). Describe the functions of the various parts of the human eye (20 marks; KCSE2003)

                                                                                                                                         1 | P a ge

(b). Describe how fruits and seeds are suited to their modes of dispersal (20 marks; KCSE 2003)

• a). How is the mammalian skin adapted to its functions? (20 marks; KCSE2004)

b). Explain how a biotic factors affect plants (20 marks; KCSE 2004)

• a). Describe how gaseous exchange takes place in terrestrial plants (20 marks; KCSE2005)

b). How is the human eye adapted to its function? (20 marks; KCSE 2005)

• a). Describe how human kidney functions (20 marks; KCSE2006)

b).Describehowwatermovesfromthesoiltotheleavesinatree (20marks; KCSE2006)

• a). Describe the structure and functions of the various parts of the human ear (20 marks; KCSE 2007 )

b). Describe causes and methods of controlling water pollution (20 marks; KCSE 2007 )

• Describe the nitrogen cycle (20 marks; KCSE2008)
• a). State four characteristics of gaseous exchangesurfaces

b). Describe the mechanism of gaseous exchange in a mammal (16 marks; KCSE 2008)

• a). How are flowers adapted to wind and insect pollination? (20 marks; KCSE2009 )

b). Describe the role of the liver in homeostasis in the human body (20 marks; KCSE2009)

• a). Describe the process of fertilization in flowering plants (20 marks; KCSE2010)

b). Describe how a finned fish such as tilapia moves in water (20 marks; KCSE 2010)

• a). Describe the exoskeleton and its function in insects (13 marks; KCSE2011)

b). Describe how accommodation in the human eye is brought about when focusing on a near object (7 marks; KCSE 2011)

• Using a relevant example in each case, describe simple and conditional reflex action (20 marks; KCSE2012)
• a).Usingarelevantexample,describehowanallergicreactionoccursinahumanbeing

(10 marks; KCSE 2012)

b).Describehowenvironmentalfactorsincreasetherateoftranspirationinterrestrialplants

• a). Describe the process of blood clotting in human beings (10 marks; KCSE2013 )

b).Howarerespiratorysurfacesinmammalsadaptedtotheirfunctions? (10marks; KCSE 2013)

• Describe the role of the following organs in excretion andhomeostasis
• The liver (10 marks; KCSE2013)
• The skin during hot environmental conditions (10 marks; KCSE2013 )
• a). Explain how each of the following factors affect the rate ofphotosynthesis:
• Temperature (2 marks; KCSE2014)
• Chlorophyll concentration (2 marks; KCSE2014 )

b). Describe the process of carbohydrate digestion in human beings (16 marks; KCSE2014)

• a). How does excretion take place in plants (4 marks; KCSE2014)

b). Describe the role of the human skin in homeostasis (16 marks; KCSE 2014)

• a).Explainthevariouswaysinwhichseedsandfruitsareadaptedtodispersal (20marks; KCSE 2015)

b). How is a mammalian heart structurally adapted to its function? (20 marks; KCSE2015)

                                                                                                                                         2 | P a ge

• (a).Usingarelevantexampleineachcase,describesimpleandconditionalreflexaction

(20 marks; KCSE 2016)

b). Describe how the mammalian heart is structurally adapted to its function (20 marks; KCSE 2016)

• a ) Explain the importance of protecting the forest ecosystem with reference to the following (20 marks; KCSE 2017 )
• a) Climate change
• b) Biodiversity

c)Biotechnology

d)Water conservation

• e) Pollution
• b) Describe how a mammalian eye is structurally adapted to its functions (20 marks)
• a) Describe the mode reproduction in a named fungus (5 marks)
• b) Describe the roles of hormones in the menstrual cycle (15 marks; KCSE 2018 )
• a) Giving examples, describe the following among organisms (20marks; KCSE 2019 )
• Predator-prey relationship
• b) Explain the effect of increased physical activity on the following organ system (20 marks)
• a)(i)Explain the role of the liver in blood regulation (3 marks ; KCSE 2020)
• Describe how a mammalian heart is adapted to its functions (17 marks)
• b) (i) Explain how the presence of chloroplast in guard cell affect the opening of the stomata (5marks)

(ii) Describe how various environmental factors affect the rate of photosynthesis (15marks)

• a) (i) Explain the role of placenta during pregnancy(10 marks) ( KCSE 2021)
• ii) Explain features and mechanisms that hinder self pollination and self fertilization(10 marks)

b)( i) Describe how xylem is structurally adapted to its functions  (5marks)

(ii) Describe the functions of mammalian blood in the human body(15 marks)

• a i) Describe how plants eliminate waste products(8 marks; KCSE2022 )

ii)Describe the structure and function of mammalian nephron (12marks)

• b) i. Describe five tropic responses and their survival values (15marks)

ii)Describe how mammalian heartbeat is controlled                (5mks)

Related Posts

English form 4 pp2 trial evaluation test with answers.

May 19, 2024

Oral Literature Revision Questions And Answers

Mang’u high school kcse revision, prediction exams with answers, leave a reply cancel reply.

Your email address will not be published. Required fields are marked *

Save my name, email, and website in this browser for the next time I comment.