SSC MTS EXAM

Detailed explanation-1: -A fundamental task of proteins is to act as enzymes-catalysts that increase the rate of virtually all the chemical reactions within cells. Although RNAs are capable of catalyzing some reactions, most biological reactions are catalyzed by proteins.

Detailed explanation-2: -Enzymes are biological catalysts that speed up biochemical reactions. Enzymes are extremely efficient in speeding up reactions. They can catalyze up to several million reactions per second. Enzymes are involved in most of the biochemical reactions that take place in organisms.

Detailed explanation-3: -When there is an increase in the rate of a chemical process by a biological molecule typically an enzyme, the process is known as enzyme catalysis. Such processes involve chemical reactions and the catalysis generally occurs at a localized site known as the active site.

Detailed explanation-4: -Answer and Explanation: The molecule that the catalyst/enzyme acts on is called the substrate. The substrate will bind the enzyme on its active site. The enzyme will then lower the activation energy of the reaction, allowing it to proceed until the final product is formed by the enzyme.