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: Base pairing in DNA follows
A) A–A and G–G
B) A–C and G–T
C) A–T and G–C
D) T–T and C–C
Q: The enzyme lipase acts on
A) Protein
B) Lipid
C) DNA
D) Starch
Q: RNA synthesis is catalyzed by
A) RNA polymerase
B) Protease
C) Helicase
D) DNA ligase
Q: Vitamins required in trace amounts function as
A) Coenzymes
B) Antibodies
C) Hormones
D) Enzymes
Q: Hydrogen bonding is important in
A) DNA base pairing
B) Primary structure
C) Ionic bonding
D) Peptide bond formation
Q: Translation converts mRNA into
A) DNA
B) Protein
C) Glucose
D) Lipid
Q: Enzyme specificity depends on
A) pH
B) Size
C) Temperature
D) Active site shape
Q: Lactose is composed of
A) Fructose and maltose
B) Glucose and galactose
C) Glucose and fructose
D) Glucose and sucrose
Q: Biuret test detects
A) Nucleic acids
B) Proteins
C) Lipids
D) Carbohydrates
Q: ATP primarily serves as
A) Hormone
B) Enzyme
C) Energy currency
D) Structural unit