Biology Quiz: Matching Key Terms & Definitions - Metabolism & Enzymes

Terms:

1. Metabolism

2. Catabolism

3. Anabolism

4. Enzyme

5. Active site

6. Substrate

7. Product

8. Cofactor

9. Coenzymes

10. Vitamins

Definitions:

a. A molecule that binds to an enzyme and helps it catalyze a reaction.

b. The chemical species that is acted on by an enzyme.

c. The process by which complex molecules are broken down into simpler ones, releasing energy.

d. The specific region of an enzyme to which the substrate binds.

e. The process by which simple molecules are combined to form more complex ones, requiring energy.

f. A substance that is necessary for the body to function properly but that cannot be produced by the body itself and must be obtained from food.

g. A catalyst that speeds up the rate of a chemical reaction without being consumed in the reaction.

h. The chemical species that is produced by an enzyme-catalyzed reaction.

i. Organic molecules that assist enzymes in carrying out specific biochemical reactions.

j. The sum of all chemical reactions that occur within a living organism.

Answers:

1. Metabolism - j

2. Catabolism - c

3. Anabolism - e

4. Enzyme - g

5. Active site - d

6. Substrate - b

7. Product - h

8. Cofactor - a

9. Coenzymes - i

10. Vitamins - f