Salivary amylase acts on:
Correct answer: A. Starch
- A. Starch
- B. Cellulose
- C. Protein
- D. Lipid
Explanation
Salivary amylase is secreted by salivary glands present in the buccal cavity. It is an enzyme that acts on starch, a type of carbohydrate and breaks it down into maltose, a disaccharide. It does not act on cellulose, protein or lipids as the bonds present in these polymers are different to those that hold the monomers in starch.
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About Digestion
The human digestive system covers the organs from mouth to anus, the movement of food, and the mechanical and chemical breakdown of carbohydrates, proteins and fats. It also includes the roles of digestive enzymes, bile, absorption through intestinal villi, and the assimilation of nutrients by body cells.
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