Question

Which of the following statement regarding Innate immunity is wrong.
(A) The response time is minute to hours.
(B) The specificity of innate immunity is highly diverse.
(C) The major components of innate immunity are B cells and T cells.
(D) The major components of innate immunity are phagocytes.
Choose the correct answer from the options given below:

• (B) and (D) only.
• (B) and (C) only.
• (A) and (D) only.
• (A) and (C) only.

Hint:

To avoid confusion, create a simple mental table comparing Innate and Adaptive immunity. \textbf{Innate:} Fast, non-specific, no memory, cells like phagocytes. \textbf{Adaptive:} Slow, highly specific, has memory, cells are B and T lymphocytes.

Answer 1

The Correct Option is B

Step 1: Innate vs. Adaptive Immunity:
Innate immunity is the body's initial, rapid, and non-specific defense. Adaptive immunity is specific, has memory, and is slower. The question seeks incorrect statements about innate immunity.
Step 2: Statement Analysis:
Examining each statement:
(A) Response Time: This is correct. Innate immunity acts quickly, within minutes to hours.
(B) Specificity: This is incorrect. Innate immunity has limited specificity, recognizing general pathogen patterns (PAMPs). High specificity is characteristic of adaptive immunity.
(C) Major Components: This is incorrect. B cells and T cells are key to the adaptive immune system, not innate.
(D) Major Components: This is correct. Phagocytes (macrophages, neutrophils, etc.) are central to the innate immune response, engulfing and destroying pathogens.
Step 3: Conclusion:
The incorrect statements regarding innate immunity are (B) and (C). Thus, the answer is (2).