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Explain the Herkogamy mechanism with sui...

Explain the Herkogamy mechanism with suitable examples

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In bisexual flowers the essential organs, the stamens and arranged in such a way that self - pollination becomes impossible . For example in Gloriosa superba the style is reflexed away from the stamens and in Hibiscus the stigmas project far above the stamens.
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FULL MARKS-ASEXUAL AND SEXUAL REPRODUCTION IN PLANTS-Additional Questions (3- Mark Questios)
  1. Differentiate between chasmogamy and cleistogamy.

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  2. Geitonogamy is similar to autogamy . Justify the statement .

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  3. Explain the Herkogamy mechanism with suitable examples

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  4. Given a brief account on pollination process in Zea mays.

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  5. Explain the role of water as a pollinating agent in Vallisneria spiral...

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  6. Enumerate the characters of ornithophilous flowers.

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  7. How the flowers of salvia are adoped for mellitophily?

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  8. Write down the advantages and disadvantages of cross-pollination.

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  9. Why pollination has to occur ?

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  10. How the pollen germination and compatibility is regulated by stigma of...

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  11. Give a brief account on solid style.

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  12. Exaplain the types of entry of pollen tube into the ovule.

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  13. What is the fate of pollen tube after reaching the embryo sac?

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  14. What is triple fusion ?

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  15. Write a short note on endosperm.

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  16. How nuclear endosperm is different from cellular endosperm

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  17. Give an account on Helobial endosperm.

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  18. Differentiate between albuminous seed and ex - albuminous seed.

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  19. Draw and label the structure of nuclear endosperm and Helobial endospe...

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  20. Point out the function of endosperm.

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