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: Enzymes accelerate reactions by lowering
A) Product concentration
B) Substrate level
C) Reaction volume
D) Activation energy
Q: Glycolysis takes place in the
A) Mitochondria
B) Cytoplasm
C) Ribosome
D) Nucleus
Q: Cholesterol is classified as a
A) Protein
B) Lipid
C) Carbohydrate
D) Nucleic acid
Q: DNA is made up of
A) Fatty acids
B) Amino acids
C) Nucleotides
D) Sugars
Q: Enzymes act as
A) Structural units
B) Transport proteins
C) Biological catalysts
D) Immune markers
Q: Triglycerides are composed of
A) Fatty acids and glycerol
B) Proteins and lipids
C) Glycerol and glucose
D) Fatty acids and nucleotides
Q: RNA contains the sugar
A) Ribose
B) Glucose
C) Fructose
D) Deoxyribose
Q: Peptide bonds are found in
A) Nucleic acids
B) Proteins
C) Lipids
D) Carbohydrates
Q: The central dogma of molecular biology is
A) DNA → Protein → RNA
B) RNA → DNA → Protein
C) DNA → RNA → Protein
D) Protein → DNA → RNA
Q: Urea cycle occurs mainly in the
A) Liver
B) Kidney
C) Pancreas
D) Brain