An enzyme facilitates chemical reactions by: Select one: a. Increasing the free-
ID: 144987 • Letter: A
Question
An enzyme facilitates chemical reactions by:
Select one:
a. Increasing the free-energy difference between reactants and products.
b. Decreasing the free-energy difference between reactants and products.
c. Lowering the activation energy of the reaction.
d. Raising the activation energy of the reaction.
e. None of the above.
Q2.
Enzymes are important components of biological systems because they:
Select one:
a. Speed up reactions.
b. Reduce the activation energy of reactions allowing them to occur.
c. Catalyze specific reactions, allowing for the regulation of metabolism.
d. b and c.
e. a, b, and c.
Explanation / Answer
Q1. Answer is c. Lowering the activation energy of the reaction.
Because enzyme catalyze chemical reaction and speed up the process by reducing the activation energy of the reaction. Catalyst lower the activation energy and increases the rate of reaction.
Q2. Answer is e. a, b and c.
Because enzyme increases the speed of reaction by reducing the activation energy of the reactions allowing them to occur. Specific enzymes catalyze specific reaction and allowing for the regulation of metabolism.