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Assertion : Synergids of embryosac also ...

Assertion : Synergids of embryosac also help in fertilization in Angiosperms.
Reason : Obturators of synergids attract the pollen tube.

A

A

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B

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C

D

D

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This section contains Assertion (A) and Reason (R) type questions. Each question has choices (1), (2), (3) and (4), out of which only one is correct. Assertion (A) Synergids of embryo sac help in fertilisation in angiosperms. Reason (R) Filiform apparatus of synergids secrete certain chemotropically active substance due to which pollen tube grows towards the embryo sac.

Synergids help in

Assertion :- Polygonum type of embryosac, is most common in angiosperm. Reason :- lt is found in most of Angiosperm plants

Obturator which helps in fertilization is outgrowht o:

Pollen tube in angiosperms act as

Obturators which help in fertilization are out growth of

Assertion (A) : Double fertilization is unique to angiosperms. Reason (R): Triple fusion occurs in both fertilization.

Describe the process of fertilization in angiosperms with the help of diagram.

Assertion Synergids are elongated cells that occur at the micropylar pole. Reason Synergids help in chemotropic movement of pollen tube.