NEET BIOLOGY

Detailed explanation-1: -All digestive enzymes are hydrolases, whereas most of the enzymes involved in energy release for muscular contraction are oxidation-reduction enzymes such as oxidases, hydrogenases and dehydrogenases.

Detailed explanation-2: -Explanation: Enzymes are biological proteins. They are catalysts and help speed up chemical reactions within the body.

Detailed explanation-3: -Pepsin is a stomach enzyme that serves to digest proteins found in ingested food. Gastric chief cells secrete pepsin as an inactive zymogen called pepsinogen. Parietal cells within the stomach lining secrete hydrochloric acid that lowers the pH of the stomach. A low pH (1.5 to 2) activates pepsin.

Detailed explanation-4: -Amylase breaks down starches and carbohydrates into sugars. Protease breaks down proteins into amino acids. Lipase breaks down lipids, which are fats and oils, into glycerol and fatty acids.

Detailed explanation-5: -The role of enzymes Once a protein source reaches your stomach, hydrochloric acid and enzymes called proteases break it down into smaller chains of amino acids. Amino acids are joined together by peptides, which are broken by proteases.