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Most resistance biological material is ...

Most resistance biological material is
Or
An organic substance that can withstand enviornmental extremes and cannot be degraded by any enzyme is

A

Lignin

B

Cellulose

C

Cuticle

D

Spropollenin

Text Solution

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The correct Answer is:
D
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GRB PUBLICATION-SEXUAL REPRODUCTION IN FLOWERING PLANTS-Fruits and Seeds
  1. Ovule is attached to placenta of ovary wall by:

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  2. When pollen tube enters through micropyle, it is called:

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  3. Most resistance biological material is Or An organic substance tha...

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  4. Both, autogamy and geitonogamy are prevented in

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  5. What is the function of germ pore

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  6. Plants with ovaries having only one ore a few ovules are generally pol...

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  7. Which one of the following statements is wrong?

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  8. Which one of the following may require pollinators but is generaticall...

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  9. Transmission tissue is characteristic feature of

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  10. Which one of the following statements is not true

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  11. Which of the following are the important floral rewards to the animal ...

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  12. Male gametophyte in angiosperms produces:

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  13. Coconut water from a tender coconut is:

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  14. The wheat grain/maize grain has an embryo with one, large, shield shap...

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  15. Which one of the following statements is not true?

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  16. Seed formation without fertilization in flowering plants involves the ...

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  17. Which one of the following generates new genetic combinations leading ...

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  18. In majority of angiosperms:

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  19. Pollination in water by hyacinth and water lily is brought about by th...

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  20. the ovule of an angiosperm is technically equivalent to

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