Given below are two statements: Statement I: Mycoplasma can pass through less than 1 micron filter size. Statement II: Mycoplasma are bacteria with a cell wall. In the light of the above statements, choose the most appropriate answer from the options given below:
Answer: (C) Statement I is correct but Statement II is incorrect. Answer: (C) Statement I correct, Statement II incorrect Solution: Mycoplasma are the smallest living cells known and pass through fine (<1 micron) filters, so Statement I is correct.
- 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
(C) Statement I is correct but Statement II is incorrect
Solution & Explanation
Answer: (C) Statement I correct, Statement II incorrect Solution: Mycoplasma are the smallest living cells known and pass through fine (<1 micron) filters, so Statement I is correct. However, Mycoplasma completely lack a cell wall, so Statement II ('bacteria with a cell wall') is incorrect. NCERT Reference: NCERT Class XI, Biological Classification, p.14, lines 12-14 — "Mycoplasma are organisms that completely lack a cell wall"