LIFE SCIENCE

Detailed explanation-1: -Lowering the temperature slows the motion of molecules and atoms, meaning this flexibility is reduced or lost. Each enzyme has its zone of comfort, or optimal temperature range, within which it works best. As the temperature decreases, so does enzyme activity.

Detailed explanation-2: -Factors affecting enzyme activity Temperature: Raising temperature generally speeds up a reaction, and lowering temperature slows down a reaction. However, extreme high temperatures can cause an enzyme to lose its shape (denature) and stop working.

Detailed explanation-3: -As with many chemical reactions, the rate of an enzyme-catalysed reaction increases as the temperature increases. However, at high temperatures the rate decreases again because the enzyme becomes denatured and can no longer function.