MUSCLE PHYSIOLOGY

Detailed explanation-1: -Like all other catalysts, enzymes are characterized by two fundamental properties. First, they increase the rate of chemical reactions without themselves being consumed or permanently altered by the reaction. Second, they increase reaction rates without altering the chemical equilibrium between reactants and products.

Detailed explanation-2: -True (Enzymes increase the rate of reaction by lowering the activation energy.)

Detailed explanation-3: -Enzymes in our bodies are catalysts that speed up reactions by helping to lower the activation energy needed to start a reaction.

Detailed explanation-4: -Answer and Explanation: The statement is True. The statement is correct because enzymes significantly enhance the speed of chemical reactions and thus bind with the substrate or reactant molecules to form the product.

Detailed explanation-5: -The correct answer is (b) Enzymes can require vitamin or mineral cofactors for their function. Enzymes are proteins that function to catalyze chemical reactions in living organisms. Some enzymes can function on their own, but others require vitamin or mineral cofactors in order to function.