2024 2025 Top 30 medical school sample multiple‐choice questions with answers—covering a
broad range of topics commonly tested in. Use these questions as a review tool to reinforce your
core knowledge across anatomy, physiology, biochemistry, pathology, pharmacology,
microbiology, and behavioral science.
1. Anatomy – Coronary Circulation
Which coronary artery is most commonly involved in myocardial infarction?
A) Right coronary artery
B) Left anterior descending artery
C) Left circumflex artery
D) Posterior descending artery
Answer: B) Left anterior descending artery
2. Physiology – Acid-Base Regulation
Which system is the primary mechanism for rapid regulation of blood pH?
A) Renal system
B) Gastrointestinal system
C) Respiratory system
D) Endocrine system
Answer: C) Respiratory system
3. Biochemistry – Inborn Errors of Metabolism
Classic phenylketonuria (PKU) is due to a deficiency of which enzyme?
A) Phenylalanine hydroxylase
B) Tyrosine hydroxylase
C) Dihydropteridine reductase
D) Phenylalanine dehydrogenase
Answer: A) Phenylalanine hydroxylase
4. Microbiology – Gram-Positive Cocci
Which of the following bacteria is Gram-positive and catalase-positive?
A) Streptococcus pyogenes
B) Staphylococcus aureus
C) Escherichia coli
D) Neisseria meningitidis
Answer: B) Staphylococcus aureus
, 5. Pharmacology – Beta-Blockers
Which of the following is a non-selective beta-blocker?
A) Metoprolol
B) Atenolol
C) Propranolol
D) Esmolol
Answer: C) Propranolol
6. Pathology – Inflammation
Which of the following is a cardinal sign of inflammation?
A) Hyperplasia
B) Erythema
C) Apoptosis
D) Fibrosis
Answer: B) Erythema
7. Anatomy – Neuroanatomy
Broca’s area is primarily responsible for:
A) Language comprehension
B) Motor speech production
C) Visual processing
D) Memory consolidation
Answer: B) Motor speech production
8. Physiology – Renal Function
What is the approximate glomerular filtration rate (GFR) in a healthy adult?
A) 25 mL/min
B) 60 mL/min
C) 90 mL/min
D) 120 mL/min
Answer: D) 120 mL/min
9. Microbiology – Tuberculosis
Which organism is responsible for tuberculosis?
A) Mycobacterium tuberculosis
B) Mycobacterium leprae
C) Staphylococcus aureus
broad range of topics commonly tested in. Use these questions as a review tool to reinforce your
core knowledge across anatomy, physiology, biochemistry, pathology, pharmacology,
microbiology, and behavioral science.
1. Anatomy – Coronary Circulation
Which coronary artery is most commonly involved in myocardial infarction?
A) Right coronary artery
B) Left anterior descending artery
C) Left circumflex artery
D) Posterior descending artery
Answer: B) Left anterior descending artery
2. Physiology – Acid-Base Regulation
Which system is the primary mechanism for rapid regulation of blood pH?
A) Renal system
B) Gastrointestinal system
C) Respiratory system
D) Endocrine system
Answer: C) Respiratory system
3. Biochemistry – Inborn Errors of Metabolism
Classic phenylketonuria (PKU) is due to a deficiency of which enzyme?
A) Phenylalanine hydroxylase
B) Tyrosine hydroxylase
C) Dihydropteridine reductase
D) Phenylalanine dehydrogenase
Answer: A) Phenylalanine hydroxylase
4. Microbiology – Gram-Positive Cocci
Which of the following bacteria is Gram-positive and catalase-positive?
A) Streptococcus pyogenes
B) Staphylococcus aureus
C) Escherichia coli
D) Neisseria meningitidis
Answer: B) Staphylococcus aureus
, 5. Pharmacology – Beta-Blockers
Which of the following is a non-selective beta-blocker?
A) Metoprolol
B) Atenolol
C) Propranolol
D) Esmolol
Answer: C) Propranolol
6. Pathology – Inflammation
Which of the following is a cardinal sign of inflammation?
A) Hyperplasia
B) Erythema
C) Apoptosis
D) Fibrosis
Answer: B) Erythema
7. Anatomy – Neuroanatomy
Broca’s area is primarily responsible for:
A) Language comprehension
B) Motor speech production
C) Visual processing
D) Memory consolidation
Answer: B) Motor speech production
8. Physiology – Renal Function
What is the approximate glomerular filtration rate (GFR) in a healthy adult?
A) 25 mL/min
B) 60 mL/min
C) 90 mL/min
D) 120 mL/min
Answer: D) 120 mL/min
9. Microbiology – Tuberculosis
Which organism is responsible for tuberculosis?
A) Mycobacterium tuberculosis
B) Mycobacterium leprae
C) Staphylococcus aureus
