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Male Gametophyte

The wall of p...

Question

The wall of pollen tube is made up of

A

Cellulose and Pectin

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B

Only sporopollenin

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C

Lignin and Pectin

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D

Pectin and Sporopollenin

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Solution

The correct option is A Cellulose and Pectin
The pollen tube is formed by the germination of the vegetative nucleus and have the wall made up of cellulose and pectin only.
Exine is the outer covering of pollen grain which is highly sculptured with sporopollenin.
So, the correct answer is option A.

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Similar questions

Q. Consider the following statements with respect to pollen grains.
(a) Exine is thin, continuous layer made up of cellulose and pectin
(b) Hard outer layer called exine is made of sporopollenin
(c) Sporopollenin is present in germ pores
(d) Exine exhibits a fascinating array of patterns and designs. Of the statements.

Q. Which among the following statements is correct?
(a) The vegetative cell of pollen grain divides to form the male gametes.
(b) Sporopollenin is absent in the germ pores.
(c) Intine of pollen grains is made up of cellulose and pectin.
(d) Pollen grains represent the male gametophyte.

Q. The cell wall of plants is made up of cellulose, which is

Q. Assertion: Pollen grains are well preserved as fossils.
Reason: The outer layer of pollen grains called the exine is made up of sporopollenin.

Q. Assertion :A cell wall is differentially permeable Reason: In plants, primary cell wall is made up of cellulose (

β

-D-glucose units), hemicellulose and pectin

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