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The pollen tubes grow through the soli...

The pollen tubes grow through the solid style by separating their cell through the secretion of

A

lipase

B

protease

C

amylase

D

pectinase

Text Solution

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The correct Answer is:
D
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A pollen tube grows down the style because

The pollen tube enters the ovule through

Pollen tube grows out of pollen grain and reaches the ovary finally through

when the pollen tube enters through the micropyle it is termed as

When pollen tube enters through micropyle, it is called:

Commonly the pollen tube enters the ovule through

How does pollen tube grow towards the ovary of the flower?

TRUEMAN BIOLOGY-SEXUAL REPRODUCTION IN FLOWERING PLANTS-MULTIPLE CHOICE QUESTIONS
  1. Upon fertilization, while ovule develops into seed, what structure dev...

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  2. The process whereby the male gametes are brought to the egg by a poll...

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  3. The pollen tubes grow through the solid style by separating their ce...

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  4. External water is not required for fertilization of

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  5. In angiosperms, triple fusion produces

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  6. In angiosperm, syngamy or true fertilization refers to

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  7. Movement of pollen tube towards embryo sac is

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  8. Germination of pollen grain on the stigma is

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  9. At the time of entering embryo sac the pollen tube contains

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  10. Doubles fertilization is fusion of

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  11. Route used by pollen tube for entering ovule is

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  12. The significance of double fertilization is that it

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  13. The second fertilization in angiosperms is known as

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  14. Entry of pollen tube through micropyte while reaching the embryo sac...

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  15. When pollen tube enters by integuments then the process is called

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  16. In angiosperms, pollen tube liberates its male gamets into:

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  17. Total number of nuclei involved in double fertilization is

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  18. Pollen tube enters the embryo sac usually

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  19. Development of embryo in angiosperm is

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

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