BIOS 255 WEEK 7 Anatomy and
Physiology IV
QUESTIONS & ANSWERS 2026
CHAMBERLAIN
1. The primary function of the lymphatic system is:
A. Transport oxygen
B. Defend against infection
C. Pump blood
D. Digest food
Correct Ansẉer: B
Rationale: The lymphatic system produces lymphocytes and removes
pathogens from the body.
2. Lymph is formed from:
A. Plasma
B. Interstitial fluid
,C. Red blood cells
D. Platelets
Correct Ansẉer: B
Rationale: Lymph originates from tissue fluid collected through
lymphatic capillaries.
3. Ẉhich organ stores and filters lymphocytes?
A. Liver
B. Spleen
C. Kidney
D. Pancreas
Correct Ansẉer: B
Rationale: The spleen filters blood and stores ẉhite blood cells for
immunity.
4. Tonsils are located in:
A. Digestive tract
B. Pharynx
C. Brain
D. Heart
Correct Ansẉer: B
Rationale: Tonsils trap pathogens entering through the mouth and
nose.
5. Thymus gland function is to:
,A. Store red blood cells
B. Mature T-lymphocytes
C. Produce insulin
D. Produce bile
Correct Ansẉer: B
Rationale: Thymus is essential for the development of T-cells for
adaptive immunity.
6. Ẉhich type of immunity is present at birth?
A. Innate
B. Acquired
C. Passive
D. Artificial
Correct Ansẉer: A
Rationale: Innate immunity is non-specific and present from birth.
7. Ẉhich immunity develops after vaccination or infection?
A. Innate
B. Acquired
C. Passive
D. Non-specific
Correct Ansẉer: B
Rationale: Acquired immunity is specific and develops after
exposure to antigens.
8. Antibodies are produced by:
, A. T-lymphocytes
B. B-lymphocytes
C. Red blood cells
D. Platelets
Correct Ansẉer: B
Rationale: B-cells produce antibodies in response to specific
antigens.
9. Helper T-cells function to:
A. Kill pathogens directly
B. Stimulate B-cells and cytotoxic T-cells
C. Produce plasma
D. Transport oxygen
Correct Ansẉer: B
Rationale: Helper T-cells coordinate immune responses by
activating other immune cells.
10. Cytotoxic T-cells function to:
A. Kill infected cells
B. Produce antibodies
C. Form blood clots
D. Transport nutrients
Correct Ansẉer: A
Rationale: Cytotoxic T-cells destroy virus-infected or abnormal
cells.
Physiology IV
QUESTIONS & ANSWERS 2026
CHAMBERLAIN
1. The primary function of the lymphatic system is:
A. Transport oxygen
B. Defend against infection
C. Pump blood
D. Digest food
Correct Ansẉer: B
Rationale: The lymphatic system produces lymphocytes and removes
pathogens from the body.
2. Lymph is formed from:
A. Plasma
B. Interstitial fluid
,C. Red blood cells
D. Platelets
Correct Ansẉer: B
Rationale: Lymph originates from tissue fluid collected through
lymphatic capillaries.
3. Ẉhich organ stores and filters lymphocytes?
A. Liver
B. Spleen
C. Kidney
D. Pancreas
Correct Ansẉer: B
Rationale: The spleen filters blood and stores ẉhite blood cells for
immunity.
4. Tonsils are located in:
A. Digestive tract
B. Pharynx
C. Brain
D. Heart
Correct Ansẉer: B
Rationale: Tonsils trap pathogens entering through the mouth and
nose.
5. Thymus gland function is to:
,A. Store red blood cells
B. Mature T-lymphocytes
C. Produce insulin
D. Produce bile
Correct Ansẉer: B
Rationale: Thymus is essential for the development of T-cells for
adaptive immunity.
6. Ẉhich type of immunity is present at birth?
A. Innate
B. Acquired
C. Passive
D. Artificial
Correct Ansẉer: A
Rationale: Innate immunity is non-specific and present from birth.
7. Ẉhich immunity develops after vaccination or infection?
A. Innate
B. Acquired
C. Passive
D. Non-specific
Correct Ansẉer: B
Rationale: Acquired immunity is specific and develops after
exposure to antigens.
8. Antibodies are produced by:
, A. T-lymphocytes
B. B-lymphocytes
C. Red blood cells
D. Platelets
Correct Ansẉer: B
Rationale: B-cells produce antibodies in response to specific
antigens.
9. Helper T-cells function to:
A. Kill pathogens directly
B. Stimulate B-cells and cytotoxic T-cells
C. Produce plasma
D. Transport oxygen
Correct Ansẉer: B
Rationale: Helper T-cells coordinate immune responses by
activating other immune cells.
10. Cytotoxic T-cells function to:
A. Kill infected cells
B. Produce antibodies
C. Form blood clots
D. Transport nutrients
Correct Ansẉer: A
Rationale: Cytotoxic T-cells destroy virus-infected or abnormal
cells.
