Given below are two statements: Statement I : In bacteria, the mesosomes are formed by the extensions of plasma membrane. Statement II : The mesosomes, in bacteria, help in DNA replication and cell wall formation. In the light of the above statements, choose the most appropriate answer from the options given below:
Answer: (A) Both Statement I and Statement II are correct. Answer: (A) Both Statement I and Statement II are correct Solution: Statement I is correct: the mesosome is a special membranous structure formed by the extensions (infoldings) of the plasma membrane into the cell.
- A.Both Statement I and Statement II are correct✓
- B.Both Statement I and Statement II are incorrect
- C.Statement I is correct but Statement II is incorrect
- D.Statement I is incorrect but Statement II is correct
Correct Answer
(A) Both Statement I and Statement II are correct
Solution & Explanation
Answer: (A) Both Statement I and Statement II are correct Solution: Statement I is correct: the mesosome is a special membranous structure formed by the extensions (infoldings) of the plasma membrane into the cell. Statement II is also correct: these mesosomes help in cell wall formation, DNA replication and distribution to daughter cells (and in respiration and secretion). Hence both statements are correct. NCERT Reference: Ch 8, p.90, lines 42-44 and p.91, line 3: "A special membranous structure is the mesosome which is formed"