Biochemistry MCQs

Biochemistry MCQs play a vital role in preparing students for understanding life at the molecular level. These MCQs include topics such as carbohydrate metabolism, lipid and protein structures, enzymes, vitamins, DNA/RNA, and clinical applications. These quizzes are essential for students appearing in MDCAT, USMLE, FCPS, and other competitive exams. Regular practice enhances understanding of how biochemical processes affect human health and disease.

Q: End product of aerobic glycolysis
A) Acetyl-CoA
B) Ethanol
C) Pyruvate
D) Lactic acid
Q: Component not found in RNA
A) Thymine
B) Ribose
C) Phosphate
D) Uracil
Q: Lipid-soluble vitamin important for vision
A) Vitamin K
B) Vitamin C
C) Vitamin D
D) Vitamin A
Q: Enzyme class that removes water during a reaction
A) Lyase
B) Isomerase
C) Hydrolase
D) Oxidoreductase
Q: Biochemical molecule classified as a coenzyme
A) NAD+
B) Insulin
C) ATP
D) DNA
Q: Macromolecule primarily responsible for catalyzing reactions
A) Nucleic acids
B) Proteins
C) Lipids
D) Carbohydrates
Q: Site of cholesterol synthesis in the cell
A) Ribosome
B) Mitochondria
C) Smooth endoplasmic reticulum
D) Nucleus
Q: Type of enzyme that transfers a phosphate group
A) Ligase
B) Kinase
C) Isomerase
D) Hydrolase
Q: Biomolecule serving as the genetic code translator
A) RNA polymerase
B) DNA
C) mRNA
D) ATP
Q: Biochemical process producing urea
A) Gluconeogenesis
B) Urea cycle
C) Glycolysis
D) Photosynthesis