MCQ Collection
MDCAT 2026 MCQs
Practice MDCAT 2026 questions with answers and explanations.
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Correct Answer: B. Defend against infection and abnormal cells
Explanation:
White blood cells participate in innate and adaptive immunity.
Different types perform specialized defense roles.
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Correct Answer: C. Defend against infection and abnormal cells
Explanation:
White blood cells participate in innate and adaptive immunity.
Different types perform specialized defense roles.
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Correct Answer: A. Absorb water and form feces
Explanation:
The large intestine reclaims water and electrolytes.
It also houses many beneficial microbes.
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Correct Answer: A. It contracts and flattens
Explanation:
Contraction enlarges thoracic volume.
Lower pressure draws air into the lungs.
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Correct Answer: B. Absorb water and form feces
Explanation:
The large intestine reclaims water and electrolytes.
It also houses many beneficial microbes.
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Correct Answer: B. It contracts and flattens
Explanation:
Contraction enlarges thoracic volume.
Lower pressure draws air into the lungs.
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Correct Answer: C. Absorb water and form feces
Explanation:
The large intestine reclaims water and electrolytes.
It also houses many beneficial microbes.
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Correct Answer: C. Transport oxygen
Explanation:
Hemoglobin binds oxygen in red blood cells.
It also contributes to carbon-dioxide transport and buffering.
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Correct Answer: D. Wave-like smooth-muscle contraction moving contents through a tube
Explanation:
Peristalsis propels food through the digestive tract.
It occurs in several hollow organs.
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Correct Answer: D. Transport oxygen
Explanation:
Hemoglobin binds oxygen in red blood cells.
It also contributes to carbon-dioxide transport and buffering.
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Correct Answer: A. Wave-like smooth-muscle contraction moving contents through a tube
Explanation:
Peristalsis propels food through the digestive tract.
It occurs in several hollow organs.
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Correct Answer: B. Wave-like smooth-muscle contraction moving contents through a tube
Explanation:
Peristalsis propels food through the digestive tract.
It occurs in several hollow organs.
