MCQ Collection
MDCAT Biology MCQs
Practice MDCAT Biology questions with answers and explanations.
Choose an option to check your answer.
Correct Answer: B. Kill infected or abnormal host cells
Explanation:
Cytotoxic T cells recognize specific antigens on cell surfaces.
They induce target-cell death.
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Correct Answer: C. The protein coat surrounding viral genetic material
Explanation:
Capsids protect the viral genome.
They also help determine viral shape and host interactions.
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Correct Answer: C. Rapid nonspecific defense present from birth
Explanation:
Innate immunity includes barriers, inflammation, phagocytes, and complement.
It responds quickly to broad pathogen patterns.
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Correct Answer: D. The protein coat surrounding viral genetic material
Explanation:
Capsids protect the viral genome.
They also help determine viral shape and host interactions.
Choose an option to check your answer.
Correct Answer: D. Rapid nonspecific defense present from birth
Explanation:
Innate immunity includes barriers, inflammation, phagocytes, and complement.
It responds quickly to broad pathogen patterns.
Choose an option to check your answer.
Correct Answer: A. The protein coat surrounding viral genetic material
Explanation:
Capsids protect the viral genome.
They also help determine viral shape and host interactions.
Choose an option to check your answer.
Correct Answer: A. Specific immunity that develops after exposure and can form memory
Explanation:
Adaptive immunity uses B and T lymphocytes.
Its memory produces faster secondary responses.
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Correct Answer: B. A lipid membrane surrounding some viruses
Explanation:
Enveloped viruses acquire membrane from host cells.
Viral proteins embedded in it assist attachment and entry.
Choose an option to check your answer.
Correct Answer: B. Specific immunity that develops after exposure and can form memory
Explanation:
Adaptive immunity uses B and T lymphocytes.
Its memory produces faster secondary responses.
Choose an option to check your answer.
Correct Answer: C. A lipid membrane surrounding some viruses
Explanation:
Enveloped viruses acquire membrane from host cells.
Viral proteins embedded in it assist attachment and entry.
Choose an option to check your answer.
Correct Answer: C. Specific immunity that develops after exposure and can form memory
Explanation:
Adaptive immunity uses B and T lymphocytes.
Its memory produces faster secondary responses.
Choose an option to check your answer.
Correct Answer: D. A lipid membrane surrounding some viruses
Explanation:
Enveloped viruses acquire membrane from host cells.
Viral proteins embedded in it assist attachment and entry.
