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BIOD 331 Module 3 Comprehensive Test Review (QnBIOD 331 Module 3 Comprehensive Test Review (Qns & Ans) 2025.BIOD 331 Module 3 Comprehensive Test Review (Qns & Ans) 2025.s & Ans) 2025.

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  • January 29, 2025
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  • 2024/2025
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BIOD 331 Module 3

Mechanisms of self defense immunity &
dysfunctions

Comprehensive Test Review (Qns & Ans)

2025



1. Which cell type is primarily responsible for the adaptive
immune response?
- A) Neutrophils
- B) T lymphocytes
- C) Macrophages
- D) Natural killer cells

ANS: B) T lymphocytes
Rationale: T lymphocytes play a key role in adaptive immunity,
specifically in recognizing and responding to specific antigens.
©2024/2025

,2. Autoimmunity can result from:
- A) Chronic viral infection
- B) Genetic predisposition
- C) Both A and B
- D) None of the above

ANS: C) Both A and B
Rationale: Autoimmune diseases are believed to result from a
combination of genetic predisposition and environmental factors,
including infections.


3. Which of the following conditions is characterized by
excessive immune response leading to tissue damage?
- A) Allergic rhinitis
- B) Systemic lupus erythematosus
- C) Osteoarthritis
- D) Diabetes mellitus

ANS: B) Systemic lupus erythematosus
Rationale: Systemic lupus erythematosus is an example of an
autoimmune disorder where the immune system attacks healthy
tissue, leading to extensive damage.


©2024/2025

, 4. Cytokines are important in the immune response because they:
- A) Inactivate pathogens
- B) Direct communication between immune cells
- C) Recruit red blood cells
- D) Form antibodies

ANS: B) Direct communication between immune cells
Rationale: Cytokines are signaling molecules that mediate and
regulate immunity, inflammation, and hematopoiesis.


5. In the context of immunity, what is the primary function of
antibodies?
- A) Lysis of infected cells
- B) Neutralization of pathogens
- C) Activation of phagocytes
- D) Production of memory cells

ANS: B) Neutralization of pathogens
Rationale: Antibodies bind to specific antigens on pathogens,
neutralizing them and marking them for destruction by other
immune cells.


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©2024/2025

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