CBSE Class 12 Biology Reproduction In Organisms Worksheet Set 05

Official Class 12 Biology Worksheets: Chapter 01 Reproduction in Organisms

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Chapter-wise Practice Material: Chapter 01 Reproduction in Organisms

View or download the dedicated Chapter 01 Reproduction in Organisms practice resource below. Engaging with these objective and subjective questions daily ensures continuous academic progress and mastery of the 2026-27 curriculum.

TOPIC : REPRODUC TION IN ORGANISMS
 
1. Define a) life span  b) clone. 
 
2. Identify the asexual reproductive structures in the following organisms
a) Algae     b) Penicillium   c) Hydra     d) Sponge
 
3. Name the vegetative propagules of
a) Potato   b) Ginger         c) Agave    d) Bryophyllum    e) Water hyacinth
 
4. Amoeba is called immortal. Justify.
 
5. In yeast and Amoeba the parent cell divides to give rise to two new individual cells. How does the cell division differ in these two organisms?
 
6. What are gemmules? Name the organisms which produce gemmules. 
 
7. Which plant is known as ‘Terror of Bengal’? Why?
 
8. Mention the site where syngamy occurs in amphibian and reptiles respectively. 
 
9. Vegetative propagation is considered as a type of asexual reproduction. Give reason. 
 
10. Algae and fungi shift to sexual method of reproduction just before the onset of adverse conditions. Give reason.
 
11. What is Juvenile phase? How is it referred to as in plants?
 
12. Name two plants showing unusual flowering phenomenon. 
 
13. Differentiate between oestrous cycle and menstrual cycle.
 
14. Mention the events of sexual reproduction. 
 
15. A moss plant produces a large number of antherozoids but relatively only a few egg cells. Why? 
 
16. Differentiate between unisexual and bisexual organisms. 
 
17. Name the phenomenon and one bird where the female gamete directly develops into a new organism.
 
18. Define: a) Parthenocarpy
b) Parthenogenesis
 
19. Differentiate between external and internal fertilization. 
 
20. Explain a) Gametogenesis
b) Embryogenesis
 
21. Describe the post fertilization changes occurring in a flower.

 

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Exam Preparation Worksheet for Class 12 Biology Chapter 01 Reproduction in Organisms

Chapter 01 Reproduction in Organisms Printable Worksheet for Class 12 Biology

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Yes, our CBSE Class 12 Biology Reproduction In Organisms Worksheet Set 05 includes a variety of questions like Case-based studies, Assertion-Reasoning, and MCQs as per the 50% competency-based weightage in the latest curriculum for Class 12.

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