Question

The microsporophyll of Cycas represents a:

• A. Male gamete
• B. Stamen
• C. Pollen grain
• D. pollinium

Answer 1

The correct option is B

Stamen

The correct option is B

Explanation of the correct option:

1. The male reproductive system's stamen, or androecium, is what it is called.
2. It is made up of two components called filaments and anther.
3. It is made up of a filament, which is a circular structure on top of a thread-like structure.
4. The anther produces pollen, which aids in the plant's male reproductive system.
5. Each microsporophyll is a firm, leafy triangular structure with several microsporangia (700 to 1160) on the lower side.

Explanation of the incorrect option:

Option A:

Cells (spermatogonia) in the seminiferous tubules of the testes create male gametes (spermatozoa) during spermatogenesis.

Option C:

1. Pollen is a powdery material comprised of pollen grains.
2. Male microgametophytes of seed-bearing plants create the pollen grains, which form male gametes for the sperm cells.
3. To complete the pollination process, the pollens are delivered to the male gametophyte.

Option C:

1. A pollinium is a cohesive mass of pollen grains produced by just one another and transmitted as a single unit during pollination.
2. This frequently occurs in plants like orchids and a variety of milkweed species.

Final answer: The microsporophyll of Cycas represents a stamen.