Question

Select the correct option regarding mesosomes.

Mesosomes are the infoldings of the cell membrane, which

(i) are present in both prokaryotic and eukaryotic cells.

(ii) help in cell wall formation, DNA replication, and respiration.

(iii) increase the surface area of the plasma membrane.

• A. ii) and iii).
• B. i) and ii).
• C. i) and iii).
• D. i), ii) and iii).

Answer 1

The correct option is A

ii) and iii).

The correct option is A.

Explanation of the correct option:

1. Mesosomes are specific structures found in bacteria.
2. They are caused by plasma membrane invagination.
3. They contribute to DNA replication and respiration.
4. The primary function is to increase the surface area of the plasma membrane.
5. The membrane's surface area increases, which aids in cellular respiration.
6. Mesosomes aid in cell division as well as cell wall and DNA synthesis.
7. Mesosomes aid in the formation of crosswalks and improve the binding of bacterial DNA to the cell membrane.
8. It facilitates the separation of bacterial DNA into daughter cells.

Explanation of the incorrect options:

Prokaryotes are the only organisms that have mesosomes.

Final answer: The correct statements regarding mesosomes are to help in cell wall formation, DNA replication, and respiration and to increase the surface area of the plasma membrane.