Biochemistry MCQs
Biochemistry MCQs cover enzymes, metabolism, vitamins, nucleic acids, and clinical correlations. Perfect for MDCAT, USMLE, FCPS, and competitive exams, these quizzes strengthen molecular biology concepts and link biochemical processes to human health and disease.
Q: Primary structure of a protein refers to
A) Folding
B) Hydrogen bonding
C) Sequence of amino acids
D) Subunit interaction
Q: Final electron acceptor in the electron transport chain
A) Oxygen
B) Water
C) Carbon dioxide
D) ATP
Q: Major buffer system in human blood
A) Bicarbonate buffer
B) Protein buffer
C) Ammonia buffer
D) Phosphate buffer
Q: Type of bond joining amino acids
A) Disulfide bond
B) Hydrogen bond
C) Ionic bond
D) Peptide bond
Q: Enzyme catalyzing DNA synthesis
A) DNA polymerase
B) RNA polymerase
C) DNA helicase
D) Ligase