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Structure of Megasporangium

Hilum is the ...

Question

Hilum is the junction between ovule and _______ .

A

funicle

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B

micropyle

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C

nucellus

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D

integument

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Solution

The correct option is A funicle
Hilum is the region where the body of the ovule fuses with the funicle. Funicle is a stalk by which the ovule is attached to the placenta.
Micropyle is the small opening on the surface of an ovule.
Integuments are the protective envelopes surrounding the ovule. Inside the integuments, there is nucellus. Nucellus contains the reserve food material.

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Q. Select the correct and incorrect statements.
(a) Tapetum nourishes developing pollen grains.
(b) Hilum represents junction between ovule and funicle.
(c) In aquatic plants, Water Hyacinth and Water Lily, pollination is by water.
(d) Primary endosperm nucleus is triploid.

Q. Choose the correct option:

Column I	Column II
A. Funicle	I. Small opening of ovule
B. Integuments	II. Stalk of ovule
C. Chalaza	III. Protective envelope
D. Hilum	IV. Junction part of ovule and stalk
E. Micropyle	V. Base of ovule

Q. When micropyle, chalaza and hilum lie in a straight line, the ovule is said to be.

Q. Study the following statements and select the correct option.
A. Tapetum nourishes the developing pollen grains
B. Hilum represents the junction between ovule and funicle
C. In aquatic plants such as water hyacinth and water lily, pollination is by water.
D. The primary endosperm nucleus is triploid

Q. Study the following statements and select the correct option.
I. Tapetum nourishes the developing pollen grains.
II. Hilum represents the junction between ovule and funicle.
III. In aquatic plants such as water hyacinth and water lily, pollination is by water.
IV. The primary endosperm nucleus is triploid.

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