Stimulus for CCK hormone is___________?
Correct answer: A. Fat, Protein
- A. Fat, Protein
- B. Acid
- C. Base
- D. Both A & B
Explanation
Cholecystokinin, or CCK, is released mainly when fats and partially digested proteins enter the small intestine, and it stimulates pancreatic enzyme secretion and gallbladder contraction. Acid is the main stimulus for secretin, so students may select both A and B by confusing secretin's stimulus with CCK's.
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About Human Digestive System
The human digestive system breaks food into absorbable molecules through mechanical processing, enzyme action and chemical conditions along the alimentary canal. Questions cover the mouth, stomach, small and large intestines, liver, pancreas and associated secretions, including the digestion and absorption of carbohydrates, proteins, lipids, vitamins, minerals and water.
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