Fewpal
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How do carbohydrates, proteins and fats get digested in human beings?

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Digestion of carbohydrates − mouth and small intestine

Digestion of fats − small intestine

Digestion of proteins −  stomach and small intestine

Digestion of carbohydrates: Starch is digested in the mouth by salivary amylase. Other forms of carbohydrates are digested in the small intestine.

Starch + Salivary Amylase → Sucrose

Maltose + Maltase → Glucose

Lactose + Lactase → Glucose + Galactose

Digestion of Carbohydrates

Digestion of Proteins: Partial digestion of protein takes place in the stomach by gastric enzyme pepsin. Further digestion of protein happens in the small intestine.

Protein + Pepsin → Peptone + Proteose

(Protein + Peptone + Proteose) + (trypsin + chymotrypsin) → Dipeptides

Digesstion of Proteins

Digestion of Fat: Fat is at first emulsified by bile and then its digestion happens in the small intestine.

Fat + Lipase → Fatty acids + Glycerol

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Hints— Mouth cavity
Stomach
Intestine

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