Science
Explain the role of the following enzymes in the process of digestion of food in humans:
(a) Salivary amylase
(b) Pepsin
(c) Trypsin
(d) Lipase
Digestive System
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Answer
(a) Salivary amylase: This enzyme is present in the saliva secreted by the salivary glands and acts on starch (a complex carbohydrate) and breaks it down into simpler sugars like maltose. Thus, it helps in the digestion of carbohydrates in the mouth.
(b) Pepsin: Pepsin is a protein-digesting enzyme present in the stomach and acts in an acidic medium and breaks down proteins into smaller peptides.
(c) Trypsin: Trypsin acts in the small intestine in an alkaline medium which helps in the digestion of proteins by converting them into peptides and amino acids.
(d) Lipase: Lipase acts in the small intestine and helps in the digestion of fats by breaking them down into fatty acids and glycerol.
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