Last Updated On [03-11-2023]
The movement of pollen tube is called
a)
Chemotropism
b)
Thermotaxis
c)
Thermonastic
d)
Hydrotropism
The movement of pollen tube is called
a)
Chemotropism
b)
Thermotaxis
c)
Thermonastic
d)
Hydrotropism
Question ID - 6108 :-
The movement of pollen tube is called
a)
Chemotropism
b)
Thermotaxis
c)
Thermonastic
d)
Hydrotropism
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The movement of pollen tube is called |
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|
a) |
Chemotropism |
b) |
Thermotaxis |
c) |
Thermonastic |
d) |
Hydrotropism |
|
(a) The movement of pollen tube towards embryo sac is chemotropism as it occurs in response to certain chemical substances like auxin and carbohydrates. |
Next Question :
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Which of the following statements is wrong? |
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a) |
Pollen grains remain viable for several months because their outer covering is made of sporopollenin |
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b) |
No enzyme can degrade sporopollenin |
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c) |
Pollen grains are well represented in fossil strata due to sporopollenin |
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d) |
Pollen wall has cavities containing proteins |
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