Question

1. the graph shows the relative rates of action of four enzymes, a, b, c, and d. which two enzymes would function in a region of the human body having a neutral ph? a. enzymes a and b b. enzymes b and c c. enzymes c and d d. enzymes b and d 12. which characteristic allows enzymes to function in a specific way? a. enzymes are complex compounds composed of starch. b. each enzyme has a characteristic shape. c. enzymes are long, complex fats. d. each enzyme is made up of four subunits. 13. the diagram illustrates a biochemical process that occurs in organisms. the substance “catalyst” is also known as a. a hormone b. an enzyme c. an antibody d. an inorganic compound

Explanation:

1. For question 11: A neutral pH is around 7. Looking at the graph, enzymes B and D have significant activity around pH 7.
2. For question 12: Enzymes have a specific three - dimensional shape that allows them to bind to specific substrates, which is key to their specific function.
3. For question 13: Enzymes are biological catalysts that speed up biochemical reactions in organisms.

Answer:

1. D. enzymes B and D
2. B. Each enzyme has a characteristic shape.
3. B. an enzyme