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Pollen grains are well preserved as foss...

Pollen grains are well preserved as fossils because of presence of

A

Cellulose

B

Carotenoids

C

Ubisch bodies

D

Sporopollenin

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The correct Answer is:
D
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Identify the pair of wrong statements I. Intine of pollen grains is made up of sporopollenin, II.l Pollen grains are well preserved as fossils because of the presence of sporopollenin, III. Enzymes can degrade the organic material of the pollen grain exine, IV. Sporopollenin can withstand high temperature, strong acids and alkali

Prollen grains are well preserved as fossils because of the presence of:

Pollen grains can be preserved as fossil because

Pollen grain is

Pollen grain is

Pollen grains are shed at

Pollen grains are released from

Assertion Pollen grains are well preserved during fossilisation. Reason The exine of pollen grain contains sporopollenin.

PHYSICS WALLAH-SEXUAL REPRODUCTION IN FLOWERING PLANTS-NEET PAST 10 YEARS QUESTIONS
  1. Pollen grains are well preserved as fossils because of presence of

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  2. The plant part which consist of two generations one within the other: ...

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  3. In water hyacinth and water lily, pollination takes place by:

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  4. The body of the ovule is fused within the funicle at:

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  5. Which of the following is incorrect for wind-pollinated plants?

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  6. In some plants thalamus contributes to fruit formation Such fruits are...

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  7. Which one of the following statements regarding post-fertilization de...

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  8. Persistent nucellus in the seed is known as

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  9. What is the fate of the male gametes discharged in the synergid ?

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  10. Which of the following has proved helpful in preserving pollen of foss...

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  11. Pollen grains can be stored for several years in liquid nitrogen hav...

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  12. Double fertilisation is

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  13. Functional megaspore in an angiosperm develops into

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  14. A dioecious flowering plant prevents both

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  15. Fowers which have single ovule in the ovary and are packed into inflor...

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  16. Attractants and reward are required for

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  17. The hollow foliar structure in a wheat embryo that encloses the shoot ...

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  18. Choose the correct sequence representing the ploidy of Nucellus, Megas...

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  19. Continued self-pollination results in:

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  20. Pollen grains can be stored for years in liquid nitrogen, maintained a...

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  21. The ovule of an angiosperm is technically equivalent to

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