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Pollen tube is composed of (A) pectin ...

Pollen tube is composed of
(A) pectin
(B) cutin
(C) sporopollenin
(D) pecto-cellulose

A

pectin

B

cutin

C

sporopollenin

D

pecto-cellulose

Text Solution

Verified by Experts

The correct Answer is:
D
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KUMAR PRAKASHAN-SEXUAL REPRODUCTION IN FLOWERING PLANTS-Section -F (Multiple Choice Questions)
  1. Besides tube nucleus, the pollen tube at the time of the entry of embr...

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  2. Egg apparatus is present on (A) micropylar end (B) chalazal end ...

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  3. Pollen tube is composed of (A) pectin (B) cutin (C) sporopollenin...

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  4. Which of the following promote pollen germination and tube growth?

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  5. How many nuclei are involved in double fertilization?

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  6. The pollination with the help of wind is termed as (A) anemophily (...

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  7. In which of the following cleistogamous flowers are present ? (A) Bal...

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  8. The largest inflorescence of the world is pollination by (A) insects ...

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  9. The chief pollinator of our agri - horticultural crops are…. (A) moth...

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  10. In….. Cleistogamous flower are produced on underground rhizomes or roo...

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  11. In bisexual flower physical barrier between anther and stigma is calle...

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  12. Pollination by wind is

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  13. Which of the following is not an example of water pollinated plant? (...

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  14. Which of the following statement is true for vallisneria? (A) Male fl...

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  15. In…..female flowers remais submerged in water and the pollen grains ar...

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  16. Which of the following birds helps in pollination? (A) Sun birds (B...

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  17. Entomophily is pollination by….. (A) reptiles (B) insects (C) rod...

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  18. To prevent inbreeding self-incompatibility is found in

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  19. Dioecious plant which prevents both autogamy and geitonogamy (A) Cast...

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  20. Apomixis in plant means development of a plant (A) from root cutting ...

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