BIOS 256 WEEK 2 QUIZ EXAM 4
(Latest Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A –
Chamberlain
1. Which type of immunity is non-specific and present at birth?
A. Adaptive immunity
B. Innate immunity
C. Passive immunity
D. Active immunity
Correct Answer: B
Rationale: Innate immunity provides immediate, non-specific
protection from pathogens.
2. What is the main function of the lymphatic system?
A. Transport oxygen
B. Return tissue fluid to the bloodstream and support immunity
C. Digest nutrients
D. Produce hormones
,Correct Answer: B
Rationale: Lymphatic vessels return interstitial fluid to circulation
and help filter pathogens.
3. Which cells are the primary phagocytes in the body?
A. Lymphocytes
B. Macrophages
C. Red blood cells
D. Platelets
Correct Answer: B
Rationale: Macrophages engulf and destroy pathogens and debris.
4. Which lymphocytes are responsible for antibody production?
A. T cells
B. B cells
C. NK cells
D. Monocytes
Correct Answer: B
Rationale: B cells differentiate into plasma cells to secrete
antibodies.
5. Which lymphocytes directly kill virus-infected cells?
A. Helper T cells
B. Cytotoxic T cells
,C. B cells
D. Macrophages
Correct Answer: B
Rationale: Cytotoxic T cells recognize and destroy infected or
abnormal cells.
6. What is the role of helper T cells?
A. Produce antibodies
B. Activate B cells and cytotoxic T cells
C. Phagocytose pathogens
D. Release histamine
Correct Answer: B
Rationale: Helper T cells coordinate the immune response by
stimulating other immune cells.
7. Where do T lymphocytes mature?
A. Bone marrow
B. Thymus
C. Spleen
D. Lymph nodes
Correct Answer: B
Rationale: T cells mature in the thymus to gain immune
competence.
, 8. Which organ filters lymph and stores lymphocytes?
A. Spleen
B. Lymph nodes
C. Thymus
D. Bone marrow
Correct Answer: B
Rationale: Lymph nodes trap pathogens and contain immune cells
that respond to antigens.
9. Which organ filters blood and removes old red blood cells?
A. Liver
B. Spleen
C. Thymus
D. Kidney
Correct Answer: B
Rationale: The spleen removes old RBCs and supports immune
surveillance.
10. What is the purpose of the inflammatory response?
A. Increase hormone secretion
B. Protect against infection and promote healing
C. Digest nutrients
D. Produce red blood cells
(Latest Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A –
Chamberlain
1. Which type of immunity is non-specific and present at birth?
A. Adaptive immunity
B. Innate immunity
C. Passive immunity
D. Active immunity
Correct Answer: B
Rationale: Innate immunity provides immediate, non-specific
protection from pathogens.
2. What is the main function of the lymphatic system?
A. Transport oxygen
B. Return tissue fluid to the bloodstream and support immunity
C. Digest nutrients
D. Produce hormones
,Correct Answer: B
Rationale: Lymphatic vessels return interstitial fluid to circulation
and help filter pathogens.
3. Which cells are the primary phagocytes in the body?
A. Lymphocytes
B. Macrophages
C. Red blood cells
D. Platelets
Correct Answer: B
Rationale: Macrophages engulf and destroy pathogens and debris.
4. Which lymphocytes are responsible for antibody production?
A. T cells
B. B cells
C. NK cells
D. Monocytes
Correct Answer: B
Rationale: B cells differentiate into plasma cells to secrete
antibodies.
5. Which lymphocytes directly kill virus-infected cells?
A. Helper T cells
B. Cytotoxic T cells
,C. B cells
D. Macrophages
Correct Answer: B
Rationale: Cytotoxic T cells recognize and destroy infected or
abnormal cells.
6. What is the role of helper T cells?
A. Produce antibodies
B. Activate B cells and cytotoxic T cells
C. Phagocytose pathogens
D. Release histamine
Correct Answer: B
Rationale: Helper T cells coordinate the immune response by
stimulating other immune cells.
7. Where do T lymphocytes mature?
A. Bone marrow
B. Thymus
C. Spleen
D. Lymph nodes
Correct Answer: B
Rationale: T cells mature in the thymus to gain immune
competence.
, 8. Which organ filters lymph and stores lymphocytes?
A. Spleen
B. Lymph nodes
C. Thymus
D. Bone marrow
Correct Answer: B
Rationale: Lymph nodes trap pathogens and contain immune cells
that respond to antigens.
9. Which organ filters blood and removes old red blood cells?
A. Liver
B. Spleen
C. Thymus
D. Kidney
Correct Answer: B
Rationale: The spleen removes old RBCs and supports immune
surveillance.
10. What is the purpose of the inflammatory response?
A. Increase hormone secretion
B. Protect against infection and promote healing
C. Digest nutrients
D. Produce red blood cells
