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State the role of filiform apparatus fou...

State the role of filiform apparatus found in embryo sac of angiosperm.

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(a) Filiform apparatus helps in absorption conduction of nutrients from nucellus to embryo sac
(b) It guides the pollen tube into the egg.
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FULL MARKS-ASEXUAL AND SEXUAL REPRODUCTION IN PLANTS-Additional Questions (2- Mark Questios)
  1. Mention the types of ovule seen in the members of (a) Cactaceae (b) ...

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  2. What does the term 'Bisporic development of embryo sac ' refers to ? G...

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  3. State the role of filiform apparatus found in embryo sac of angiosperm...

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  4. What is pollination ? Mention its types.

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  5. Why pollination in gymnosperm is said to be direct ?

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  6. Define Homogamy with an example

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  7. What is cross - pollination ? What are its types ?

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  8. Distinguish between monoecious and dioecious plants .

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  9. Define the following terms . (a) Protandry (b) Protogyny

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  10. What is Heterostyly ? Give example.

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  11. How self - pollination is avoided in Abutilon ?

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  12. Name the agents of the following tyes of pollination.

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  13. Give any four unique characters exhibited by anemophilous flowers.

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  14. How the pollen grains of Vallisneria protect themselves ?

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  15. Point out the differences between anemophilous flowes and ornithophilo...

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  16. Write the advantages and disadvantages of self-pollination.

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  17. What is pollen pistil interaction ?

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  18. List the post fertilization changes in a flower .

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  19. What is perisperm ?

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  20. What happens to the following floral parts , after the fertilization p...

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