Enzyme present in the saliva is_____________?
Correct answer: C. ptyalin
- A. lipase
- B. trypsin
- C. ptyalin
- D. invertase
Explanation
Ptyalin is the salivary enzyme, also called salivary amylase, and it begins the digestion of starch into smaller carbohydrates in the mouth. Trypsin acts in the small intestine, while lipase mainly digests fats, so students often choose trypsin because it is another well-known digestive enzyme. Invertase is not the standard enzyme identified with saliva.
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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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