Question

The effect of toxin B on a certain type of bacteria is mentioned. The toxin does not affect the bacteria due to its specific mechanism.

• A. The toxin is immature.
• B. The bacteria are resistant to the toxin.
• C. The toxin is stored in the cells.
• D. The bacteria do not interact with the toxin.

Hint:

Resistance to toxins in bacteria is an important factor in the study of microbial pathogenesis and antibiotic resistance.

Answer 1

The Correct Option is B

Step 1: Understanding the Question.
This question discusses the inability of a toxin to affect a certain type of bacteria. The options focus on the different reasons why this might happen.

Step 2: Analyzing the Options.
(A) The toxin is immature: This is unlikely because the question specifies that the toxin's effect is blocked, not that it is immature.
(B) The bacteria are resistant to the toxin: Correct — Bacteria often evolve resistance mechanisms, such as toxin neutralization, making them unaffected by the toxin.
(C) The toxin is stored in the cells: This is not relevant to the mechanism described in the question.
(D) The bacteria do not interact with the toxin: This is not correct, as the interaction could be blocked by resistance mechanisms.

Step 3: Conclusion.
The correct answer is (B) The bacteria are resistant to the toxin, as this explains why the bacteria are unaffected by the toxin.