Practicing Success

Target Exam

CUET

Subject

Biology

Chapter

Sexual Reproduction in Flowering Plants

Question:

What does the male gametophyte in angiosperms produce?

Options:

Two sperms and a vegetative cell

Single sperm and a vegetative cell

Single sperm and two vegetative cells

Three sperms explain

Correct Answer:

Two sperms and a vegetative cell

Explanation:

The male gametophyte in angiosperms produces two sperms and a vegetative cell.

In angiosperms, the male gametophyte, also known as the pollen grain, undergoes a series of developmental changes to reach maturity. Within the pollen grain, there are two cells: the generative cell and the vegetative cell.

During fertilization, the generative cell divides to form two sperm cells. These sperm cells are essential for the process of double fertilization in angiosperms. One sperm cell fuses with the egg cell to form the zygote, which develops into the embryo. The other sperm cell fuses with secondary nuclei in the central cell, resulting in the formation of  endosperm, which provides nourishment to the developing embryo.

Along with the sperm cells, the male gametophyte also contains a vegetative cell. The vegetative cell plays a role in pollen tube formation. After pollination, the vegetative cell undergoes mitotic divisions and elongates to form the pollen tube, which delivers the sperm cells to the female reproductive structures.

Therefore, the male gametophyte in angiosperms produces two sperm cells and a vegetative cell, contributing to the process of fertilization and subsequent embryo and endosperm development.