BIOMOLECULES AND ENZYMES

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: -Which statement is TRUE of enzyme catalysts? They lower the activation energy for the conversion of substrate to product.

Detailed explanation-3: -Explanation: The correct answer to this question is yes, enzymes are protein catalysts. In fact, the central role of enzymes-which are proteins or RNA-is to act as catalysts in biological reactions to increase the rate and speed of chemical reactions.

Detailed explanation-4: -Catalyst does not change on the enthalpy of the reactants. It enhances the rate of the reaction by lowering the activation.

Detailed explanation-5: -Answer and Explanation: Of the following regarding enzymes, enzymes being consumed by the reaction they catalyze is incorrect. Enzymes are special in that they’re able to catalyze many different reactions without being consumed or used up by the specific reaction.