Question

Cells present in the mature pollen grains are___:

• A. Central cell and generative cell
• B. Antipodal cell and vegetative cell
• C. Vegetative cell and generative cell
• D. Filiform cell and micropyl cell

Answer 1

The Correct Option is C

In the study of plant biology, particularly in the context of reproduction, pollen grains play a crucial role. A mature pollen grain typically comprises two distinct types of cells: the vegetative cell and the generative cell. Let's explore their functions and significance: 

• Vegetative Cell: This is the larger of the two cells in a mature pollen grain. Its primary function is to develop into the pollen tube once the pollen lands on the stigma of a compatible flower. This tube acts as a channel through which the generative cell can travel to reach the ovule.
• Generative Cell: This smaller cell is responsible for producing the sperm cells required for fertilization. As the pollen tube grows, the generative cell divides to form two sperm cells that ultimately enable fertilization of the ovule, leading to seed formation.

Mature pollen grains are essential for plant reproduction, as they carry these critical cells that facilitate the delivery of sperm to the ovule, ensuing successful fertilization and propagation of the species. Therefore, the correct answer is that mature pollen grains contain the "Vegetative cell and generative cell."

Answer 2

(1) Central cell and generative cell

This statement is incorrect. Central cells are not found in mature pollen grains. Central cells are part of the female gametophyte (embryo sac) in angiosperms.

(2) Antipodal cell and vegetative cell

This statement is incorrect. Antipodal cells are also part of the female gametophyte (embryo sac) in angiosperms, not found in mature pollen grains.

(3) Vegetative cell and generative cell

This statement is correct. Mature pollen grains in angiosperms typically contain two cells: the vegetative cell and the generative cell. The vegetative cell is larger and provides nutrients and protection, while the generative cell is smaller and divides to form two sperm cells during fertilization.

(4) Filiform cell and micropyl cell

This statement is incorrect. Filiform cells and micropyl cells are not recognized terms in the context of mature pollen grains. These terms do not describe the cells present in pollen grains.

Conclusion

The correct answer is (3) Vegetative cell and generative cell. These are the two cells typically found in mature pollen grains of angiosperms.