Question
Question: Which of the following statements are correct with respect to mesosome?...
Which of the following statements are correct with respect to mesosome?
A
It is formed due to invagination of plasma membrane
B
It is found in form of vesicles, tubules and lamellae
C
One of its function is cell wall formation
D
It is membrane structure that is not similar to eukaryotic cell membrane
Answer
A, B and C
Explanation
Solution
The mesosome is a distinctive structure found in prokaryotic cells (like bacteria). Let's evaluate each statement:
- A) It is formed due to invagination of plasma membrane: This statement is correct. Mesosomes are indeed infoldings or extensions of the plasma membrane into the cytoplasm of prokaryotic cells.
- B) It is found in form of vesicles, tubules and lamellae: This statement is correct. Mesosomes can appear in various forms, including vesicular (sac-like), tubular (tube-like), and lamellar (layered) structures.
- C) One of its function is cell wall formation: This statement is correct. Mesosomes are involved in several functions, including cell wall formation, DNA replication and distribution to daughter cells, respiration, and secretion processes.
- D) It is membrane structure that is not similar to eukaryotic cell membrane: This statement is incorrect. The plasma membrane of prokaryotes, from which mesosomes are formed, is fundamentally similar in structure and composition to the eukaryotic cell membrane (both are composed of a phospholipid bilayer with embedded proteins, following the fluid mosaic model). Therefore, the mesosome membrane is similar to the eukaryotic cell membrane.
Based on the analysis, statements A, B, and C are correct.