Class 11 Biology Case Study Questions Chapter 4 Animal Kingdom
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In Class 11 Final Exams there will be Case studies and Passage Based Questions will be asked, So practice these types of questions. Study Rate is always there to help you. Free PDF Downloads of CBSE Class 11 Biology Chapter 4 Case Study and Passage Based Questions with Answers were Prepared Based on Latest Exam Pattern. Students can solve Class 11 Biology Case Study Questions Animal Kingdom to know their preparation level.
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In CBSE Class 11 Biology Paper, There will be a few questions based on case studies and passage-based as well. In that, a paragraph will be given, and then the MCQ questions based on it will be asked.
Animal Kingdom Case Study Questions With Answers
Here, we have provided case-based/passage-based questions for Class 11 Biology Chapter 4 Animal Kingdom
Case Study/Passage-Based Questions
Case Study 1: Animals in which the cells are arranged in two embryonic layers, an external ectoderm, and an internal endoderm, are called diploblastic animals, e.g., coelenterates. An undifferentiated layer, mesoglea, is present in between the ectoderm and the endoderm.
Coelom – The presence or absence of a cavity between the body wall and the gut wall is very important in classification. The body cavity, which is lined by mesoderm is called coelom. Animals possessing coelom are called coelomates, e.g., annelids, mollusks, arthropods, echinoderms, hemichordates, and chordates. In some animals, the body cavity is not lined by mesoderm, instead, the mesoderm is present as scattered pouches in between the ectoderm and endoderm. Such a body cavity is called pseudo coelom and the animals possessing them are called pseudocoelomates, e.g., aschelminthes. The animals in which the body cavity is absent are called acoelomates, e.g., Platyhelminthes.
Segmentation – In some animals, the body is externally and internally divided into segments with a serial repetition of at least some organs. For example, in earthworms, the body shows a pattern called metameric segmentation, and the phenomenon is known as metamerism.
Notochord – It is a mesodermally derived rod-like structure formed on the dorsal side during embryonic development in some animals. Animals with notochord are called chordates and those animals which do not form this structure are called non-chordates, e.g., porifera to echinoderms.
1.) Diploblastic animals are characterized by _________________.
- a) External ectoderm cell arrangement
- b) Internal endoderm cell arrangement
- c) Both a and b
- d) None of the above
Ans: c) Both a and b
2.) In coelomates, the body cavity is surfaced by____________
- a) Ectoderm
- b) Mesoderm
- c) scattered pouches
- d) Endoderm
Ans: b) Mesoderm
What distinguishes gymnosperms from other seed-producing plants? A) The ovules are enclosed by an ovary wall B) The ovules and seeds remain exposed C) The roots are always fibrous D) The leaves are never compound
What type of roots is associated with N2-fixing cyanobacteria in gymnosperms? A) Tap roots B) Fibrous roots C) Mycorrhizal roots D) Coralloid roots
In gymnosperms like conifers, what is the function of the needle-like leaves? A) Increase water absorption B) Enhance pollination C) Reduce surface area to minimize water loss D) Attract insects for pollination
Which gymnosperm is known for being one of the tallest tree species? A) Cycas B) Pinus C) Sequoia D) Mycorrhiza
What are the male cones or strobili in gymnosperms called? A) Macrosporangiate B) Megasporophylls C) Microsporangiate D) Megaspores
Which type of sporophylls bears the megasporangia in gymnosperms? A) Microsporophylls B) Macrosporophylls C) Strobili D) Male cones
How many megaspores are formed by the megaspore mother cell in gymnosperms? A) One B) Two C) Three D) Four
In which gymnosperm are male cones and megasporophylls borne on different trees? A) Sequoia B) Pinus C) Cycas D) Mycorrhiza
What kind of spores do gymnosperms produce? A) Heterosporous, producing both microspores and megaspores B) Homosporous, producing only one type of spore C) Only megaspores D) Only microspores
Which part of the gymnosperm is protected by envelopes and referred to as an ovule? A) Pollen grain B) Nucellus C) Microsporangia D) Archegonia
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