BIOMOLECULES AND ENZYMES

Detailed explanation-1: -As the temperature rises, so does the level of enzyme activity. Maximum activity is achieved at the enzyme’s optimum temperature. The active site of the enzyme changes shape as the temperature rises above optimum temperature, resulting in a decline in activity.

Detailed explanation-2: -Above a certain temperature, activity begins to decline because the enzyme begins to denature. The rate of chemical reactions therefore increases with temperature but then decreases as enzymes denature.

Detailed explanation-3: -High heat destroys enzymes. Enzymes are protein molecules that get denatured at high temperatures. High heat breaks hydrogen and ionic bonds leading to disruption in enzyme shape. The enzyme loses its activity and can no longer bind to the substrate.