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Developing pollen obtains its nutrition ...

Developing pollen obtains its nutrition from

A

epidermis

B

tapetum

C

endotheicum

D

middle layer.

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The developing foetus obtains nourishment from the mother 's blood throught organ called ________

[A]: The pollen sterility has been attributed to the malfunctioning of tapetum. [R]: Premature degeneration of the tapetum deprives the developing spores of its nutri- tion.

Assertion: Monotropa grows in pine forests with the roots of pines. Reason: Saprophytes obtain their nutrition from dead organic matter.

From where does the developing embryo obtains its nourishment?

Assertion Epiphytes are attached on the other plants. Reason They obtain their nutrition from host plants.

The innermost wall layer of microsporangium nourishing the developing pollen grains is known as:

Spermatozoa get nutrition from:

Assertion :- Development of pollen grains begins only after pollination. Reason : Development of pollen grain takes place only on stigma

MBD -HARYANA BOARD-SEXUAL REPRODUCTION IN FLOWERING PLANTS-EXERCISE
  1. State true of false : The female gametophyte of a typical dicot at t...

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  2. State true of false : Embryo sac is found in ovule.

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  3. Mustard and tomato are examples of hypogynous flower.

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  4. State true of false : Removal of anther from bud is called emasculati...

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  5. State true of false : A cleistogamous flower remains closed to help s...

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  6. State true of false : In angiosperm,endosperm develops after double f...

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  7. A mature ovule that contains at embryo, with stored food enclosed in a...

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  8. The female gametophyte of flowering plants that contains an egg cell.

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  9. A kind of reproduction in which the new individuals are formed without...

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  10. A kind of self - pollination in which the pollens from the anthers of ...

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  11. Testa and tegmen are present in :

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  12. Allogamy is a form of :

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  13. Male gametes are formed from:

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  14. The fertilisation in which male gametes are carried through pollen tub...

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  15. Egg apparatus is present at:

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  16. Developing pollen obtains its nutrition from

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  17. Largest cell of the ovule is

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  18. Which one is a female gamete?

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  19. Growth of pollen tube inside the ovule is due to:

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  20. Transfer of pollen grains from anther of flower of one plant to stigma...

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