Question

Assertion (A): Clostridium tetani is an obligate anaerobe.

Reason (R): It cannot live in high O₂ concentration.

Select the most appropriate answer from the options given below:

(a) Both A and R are true and R is the correct explanation of A

(b) Both A and R are true but R is not the correct explanation of A.

(c) A is true but R is false.

(d) if both A and R are false.

Answer 1

Correct option is (a)

Explanation of 'A' & 'R' :- The bacteria belonging to the category of obligate anaerobes, respire only anaerobically. They generally get killed under aerobic conditions e.g., Clostridium tetani, C. botulinum.

Result: Hence, it is proved that both 'A' and 'R' are true and as 'R' is the correct explanation of 'A', so the answer is option (a).