Question

_____facilitates entry of oxygen and water into the seed during germination.​

Answer 1

Complete question:

_____facilitates the entry of oxygen and water into the seed during germination.​

a. Funiculus

b. Micropyle

c. hilum

d. seed coat

Answer:

Micropyle

Explanation:

• The seed is covered by a seed coat that protects the delicate embryo inside. Hence option d. is incorrect.

• This remains attached to the pericarp (ovary wall or fruit wall) by a short stalk called seed stalk or funiculus. Thus it is incorrect.

• In a mature seed, the position of seed stalks is represented by a small oval depression called hilum. Hence it is incorrect.

• Just below the hilum exists a small pore, the micropyle (inside the ovule the micropyle is an opening which allows the entry of the pollen tube).

• The position of the micropyle can be easily located by pressing the water-soaked seeds.

• The micropyle represents a narrow pore or passage formed by the projection of the integuments through which water & oxygen enters the seed during seed germination.
• Small air bubbles come out along with water through this micropylar pore.

Hence "option b. micropyle" is the accurate answer that facilitates the entry of oxygen and water into the seed during germination.​

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Answer 2

Answer:

MICROPHYLE  facilitates the entry of oxygen and water into the seed during germination.

Explanation:

The micropyle is the small opening present at the tip wherein the integument does now no longer cover the nucellus withinside the ovule. Pollen tube enters the ovule via a micropyle. It is present as a small pore above the hilum withinside the seed. It absorbs water and enables seed germination

• The function of the micropyle may be easily located via way of means of pressing the water-soaked seeds.
• The micropyle represents a narrow pore or passage formed via way of means of the projection of the integuments through which water & oxygen enters the seed during seed germination.
• Small air bubbles come out along with water via this micropylar pore.

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