Question

Ovule integument gets transformed into
A.Seed
B.Seed coat
C.Fruit wall
D.Cotyledons

Answer 1

These ovules are part of a plant structure that develops into seeds after the process of fertilization. The female reproductive cells are present in the structure of the ovule in the seeded plants. Mainly seeds contain three parts in them called: the outer layer forming the integument, a remnant of the megasporangium called the nucleus and at the center part there is a female gametophyte that is formed by the haploid megaspore.

Complete answer: The protective layer of cells that surrounds the ovule is called the integument. One integument is unitegmic is typically present in most Gymnosperms whereas two integuments called biogenic are present typically in Angiosperms. The integral process of ovules formation from megasporangia is a pathway for an evolutionary origin of the inner integument that is enclosed by the megasporangium of the integuments to develop into seed coat when the ovules mature after fertilization.
The nucleus does not get closed completely but retains the opening at the apex that is referred to as micropyle in which the integuments do not close. The pollen of the male gametophyte enters into the ovule for the process of fertilization during the opening of the micropyle opening. Pollen is drawn into the ovule on a drop of fluid that exudes out the micropyle that is called the cross-pollination drop mechanism in Gymnosperms like conifers. Only pollen has a free right to enter into the micropyle in angiosperms. The radicles of the seedlings emerge through the micropyle during the process of germination.
Hence, the correct option is (B) Seed coat.

Note: Chalaza is the part that is located opposite to the micropyle where the integuments and nucleus are joined. Through the phloem of the vascular system to the funiculus and outer integument, nutrients are travelled in the plant and from there apoplastically and symplastically through the chalaza to the nucleus inside the ovule.