MDCAT Biology MCQs

Correct answer D. Urea

Correct answer D. Phagocytosis of bacteria and worn-out red blood cells

Correct answer D. Salivary amylase

Correct answer C. Maltose

Correct answer C. Parotid glands

Correct answer B. Waves of muscular contraction that push food along the gut

Correct answer B. Pyloric sphincter

Correct answer B. Emulsifying fats into small droplets

Correct answer A. Polypeptides (peptones)

Correct answer C. It coagulates soluble milk protein so it stays longer in the stomach

Correct answer B. A thick layer of mucus protects the lining and pepsin is secreted as inactive pepsinogen

Correct answer A. Chyme

Correct answer D. Vitamin B₁₂

Correct answer D. Bile salts emulsify fats, increasing the surface area for lipase

Correct answer A. Produced in the liver and stored in the gall bladder

Correct answer B. Cholecystokinin (CCK)

Correct answer B. Juice rich in hydrogencarbonate (bicarbonate) ions

Correct answer D. Enterokinase (enteropeptidase)

Correct answer D. Fatty acids and glycerol (monoglycerides)

Correct answer B. Trypsinogen