Question

enzyme x may digest bones but the best ph for this enzyme is unknown. two experimental designs to determine the best ph are shown. choose which is the best design and explain why.

Explanation:

Design A is better. In an experiment to determine the optimal pH for an enzyme, the pH values should be set in a relatively narrow range if there is some prior knowledge (bones are part of the body, and body - related enzymes often work in a more neutral - to - slightly acidic range). Design A has pH values (2, 3, 4, 5) that are closer together, allowing for a more precise determination of the optimal pH. Design B has a very wide range of pH values (2, 5, 8, 11), which may not accurately pinpoint the best pH if the optimal pH is in a more narrow acidic range (as is common for many digestive enzymes).

Answer:

Design A is the better design.