Gastrointestinal Practice Questions Related

Review Gastrointestinal Practice Questions related questions and content

Relating to carbohydrate digestion:

  • A. Cellulose can be digested by human amylases
  • B. It occurs only if bile salts are present
  • C. third of starch digestion occurs in the mouth and two-thirds occurs in the small gut
  • D. It can only occur in the complete absence of protein digestion
Correct Answer: B

Rationale: The correct answer is B because bile salts are essential for the digestion and absorption of fats, not carbohydrates. Cellulose cannot be digested by human amylases, making choice A incorrect. Starch digestion starts in the mouth with salivary amylase, not one-third in the mouth and two-thirds in the small gut, so choice C is incorrect. Carbohydrate digestion can occur simultaneously with protein digestion, so choice D is also incorrect. Bile salts aid in emulsifying fats, facilitating their digestion and absorption in the small intestine.