Sexual Reproduction in Flowering Plants Test - 2 Class 12 Notes | EduRev

Class 12 : Sexual Reproduction in Flowering Plants Test - 2 Class 12 Notes | EduRev

 Page 1


CBSE TEST PAPER-03 
CLASS - XII BIOLOGY (Sexual Reproduction in Flowering Plants) 
1. What do you understand by double fertilization? (1) 
2. What is sporopollenin? (1) 
3. Name one plant each where pollination occurs with the help of (1) 
a) Water.
b) Bats
4. Why do most zygotes develop after certain amount of embryo is formed? (1) 
5. What is polyembryony? (1) 
6. State the characteristics of insect pollinated flowers. (2) 
7. Differentiate between chasmogamous and cleistogamous flowers (2) 
8. Which type of pollination ensures the arrival of genetically different pollen
grains to stigma? (2) 
9. What relationship exists between a species of moth and Yucca plant? (2) 
10. Describe the structure of a pollen grain. (3) 
11. Enlist the advantages offered by seeds to angiosperms. (3) 
12. Give any three advantages of sexual incompatibility. (3) 
13. Explain the development of embryo in a dicotyledonous plant with neatly labeled
diagrams. (5) 
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