Multiple choice

Where in the human digestive system does protein digestion begin?

  1. Mouth

  2. Oesophagus

  3. Stomach

  4. Small intestine

  5. Liver
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct answer. The enzyme pepsin begins the digestion of proteins present in the food to form smaller molecules. Thus, protein digestion begins in the stomach itself.

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