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(i) Draw a diagram of a section of a meg...

(i) Draw a diagram of a section of a megasporangium of a flowering plant and label funiculus, micropyle, nucellus and embryo sac in it.
(ii) Name the organic material exine of the pollen grain is made up of. How is this material advantageous to the pollen grain?

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MODERN PUBLICATION-SEXUAL REPRODUCTION IN FLOWERING PLANTS-Revison Exercises (VI. Long Answer Type Questions)
  1. Describe different types of cross pollination in plants.

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  2. Differentiate between self and cross pollination. Mention two contriva...

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  3. WHAT IS APOMIXIS AND POLYEMBRYONY

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  4. Define double fertilization. Explain the process with the help of suit...

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  5. Raja a science student observed the structure of mature embryo sac com...

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  6. Explain megasporogenesis till the formation of embryo sac. Support you...

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  7. What is placenta ?Give its functions ?

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  8. Explain the formation of embryo sac in plants.

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  9. Explain the structure of typical angiospermic ovule.

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  10. With the help of labelled diagrams, depict the stages of a microspore ...

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  11. Describe double fertilization and its significance.

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  12. (a) Define cleistogamy. What type of pollination occurs in cleistogamo...

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  13. Draw a neat labelled diagram of T.S. of mature anther.

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  14. With the help of a labelled diagram, describe the structure of typical...

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  15. Explain with the help of a diagram the development of a mature embryo ...

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  16. (i) Draw a diagram of a section of a megasporangium of a flowering pla...

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  17. Describe the post festulolium changes in embryo sac.

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  18. Write an essay on the development of female gametophyte. Illustrate th...

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  19. What is crom pollination? Write two advantages of crow-pollination,

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  20. What is megasporogenesis? Explain the development of eight nucleate em...

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