
Medical College Admission Test quiz
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In organic chemistry, what is a carbon-oxygen double bond called?
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More questions about Medical College Admission Test
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In physics, what work is done by forces perpendicular to displacement?
Answer: 0 Joules
Why: A satellite in a circular orbit shows it: gravity pulls at a right angle to the motion, so the speed never changes.
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In biology, which valve separates the left atrium and ventricle?
Answer: Mitral valve
Why: Its name comes from the mitre, a bishop's pointed hat, and it is the heart's only valve with two flaps instead of three.
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In chemistry, what is the oxidation state of oxygen in peroxides?
Answer: -1
Why: Each oxygen here sits halfway between its state in water and in oxygen gas, which is why hydrogen peroxide can either oxidize or reduce.
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In psychology, which sleep stage is associated with vivid dreaming?
Answer: REM
Why: During this stage the brainstem shuts down skeletal muscle, so the sleeper watches the dream instead of acting it out.
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In biochemistry, what is the net ATP yield from glycolysis?
Answer: 2
Why: Glycolysis runs in the cytosol and needs no oxygen, which is why mature red blood cells depend on it as their only ATP source.
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What is the standard registration fee for the MCAT in 2026?
Answer: $355
Why: The AAMC lists $360 for 2027 test dates, while Fee Assistance applicants pay only $145.