20 Common MCQs | General Medical MCQs | With Answer Key

  1. What is the normal range of resting heart rate for adults?
    • A. 40-60 beats per minute
    • B. 60-100 beats per minute
    • C. 100-120 beats per minute
    • D. 120-140 beats per minute
  2. Which vitamin is essential for blood clotting?
    • A. Vitamin A
    • B. Vitamin B12
    • C. Vitamin C
    • D. Vitamin K
  3. The sinoatrial node is located in which part of the heart?
    • A. Left atrium
    • B. Right atrium
    • C. Left ventricle
    • D. Right ventricle
  4. What is the main function of hemoglobin in the blood?
    • A. Transporting carbon dioxide
    • B. Fighting infections
    • C. Transporting oxygen
    • D. Clotting blood
  5. Which organ is primarily responsible for detoxifying chemicals and metabolizing drugs?
    • A. Kidney
    • B. Liver
    • C. Pancreas
    • D. Spleen
  6. What is the largest bone in the human body?
    • A. Femur
    • B. Tibia
    • C. Humerus
    • D. Fibula
  7. Which part of the brain is responsible for balance and coordination?
    • A. Cerebrum
    • B. Cerebellum
    • C. Brainstem
    • D. Hypothalamus
  8. The hormone insulin is produced by which organ?
    • A. Liver
    • B. Pancreas
    • C. Adrenal glands
    • D. Thyroid gland
  9. Which condition is characterized by an excessive amount of bilirubin in the blood?
    • A. Anemia
    • B. Jaundice
    • C. Leukemia
    • D. Hepatitis
  10. What is the primary function of platelets in the blood?
    • A. Transporting oxygen
    • B. Fighting infections
    • C. Clotting blood
    • D. Transporting nutrients
  11. Which of the following is not a function of the liver?
    • A. Producing bile
    • B. Storing glucose
    • C. Filtering blood
    • D. Producing insulin
  12. What is the main structural component of hair and nails?
    • A. Collagen
    • B. Keratin
    • C. Elastin
    • D. Myosin
  13. Which type of blood cell is responsible for transporting oxygen?
    • A. Red blood cells
    • B. White blood cells
    • C. Platelets
    • D. Plasma cells
  14. The tricuspid valve is located between which two chambers of the heart?
    • A. Left atrium and left ventricle
    • B. Right atrium and right ventricle
    • C. Left ventricle and aorta
    • D. Right ventricle and pulmonary artery
  15. What is the most common blood type in the ABO blood group system?
    • A. A
    • B. B
    • C. AB
    • D. O
  16. Which organ is responsible for producing the hormone adrenaline?
    • A. Thyroid gland
    • B. Adrenal gland
    • C. Pancreas
    • D. Pituitary gland
  17. What is the primary function of the small intestine?
    • A. Absorbing nutrients
    • B. Producing digestive enzymes
    • C. Storing waste
    • D. Regulating blood sugar levels
  18. Which part of the eye is responsible for controlling the amount of light that enters?
    • A. Retina
    • B. Cornea
    • C. Pupil
    • D. Lens
  19. What is the main function of the white blood cells?
    • A. Transporting oxygen
    • B. Fighting infections
    • C. Clotting blood
    • D. Carrying nutrients
  20. Which vitamin is primarily obtained from sunlight exposure?
    • A. Vitamin A
    • B. Vitamin B12
    • C. Vitamin C
    • D. Vitamin D

Answer Key

  1. B
  2. D
  3. B
  4. C
  5. B
  6. A
  7. B
  8. B
  9. B
  10. C
  11. D
  12. B
  13. A
  14. D
  15. B
  16. B
  17. A
  18. C
  19. B
  20. D

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