Answer :
Final answer:
The digestion of food in our body involves a chemical reaction known as chemical digestion, where complex molecules are broken down into simpler ones by enzymes for energy. Various enzymes act at specific sites to break down different components of food during digestion.
Explanation:
The type of reaction represented by the digestion of food in our body is a chemical reaction, where complex food molecules are broken down into simpler molecules through the action of enzymes present in the digestive system. For example, carbohydrates are hydrolyzed into monosaccharides, fats into fatty acids, proteins into amino acids, and DNA and RNA into mononucleotides.
In digestion, chemical digestion is a crucial process involving the breaking of bonds within food molecules through reactions like hydrolysis, leading to the release of energy and nutrients that the body can utilize for various functions.
The enzymes involved in digestion have distinct site of actions and functions:
- Salivary amylase in the mouth starts breaking down starch into simpler sugars.
- Pepsin in the stomach breaks down proteins into peptides.
- Pancreatic amylase in the small intestine continues starch digestion.
- Lipase breaks down fats into fatty acids and glycerol in the small intestine.
- Trypsin and chymotrypsin in the small intestine break down proteins into smaller peptides and amino acids.
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