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: Enzymes act by lowering
A) Substrate size
B) Temperature
C) Activation energy
D) pH level
Q: Amino acids join together by forming
A) Ionic bonds
B) Glycosidic bonds
C) Peptide bonds
D) Hydrogen bonds
Q: Lipids are insoluble in
A) Benzene
B) Water
C) Chloroform
D) Ether
Q: The building blocks of nucleic acids are
A) Nucleotides
B) Amino acids
C) Fatty acids
D) Monosaccharides
Q: DNA differs from RNA by containing
A) Uracil
B) Deoxyribose
C) Thymine
D) Ribose