How Might a Change of One Amino Acid at a Site

question 24

Multiple Choice

How might a change of one amino acid at a site, distant from the active site of an enzyme, alter an enzyme's substrate specificity?

• A) by changing the enzyme's stability
• B) by changing the enzyme's location in the cell
• C) by changing the shape of an enzyme
• D) by changing the enzyme's pH optimum
• E) An amino acid change away from the active site cannot alter the enzyme's substrate specificity.

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Definitions:

Rational Model

A mathematical model that uses rational expressions to describe relationships between different quantities.

Least Common Denominator

The smallest positive integer that is divisible by each denominator of a set of fractions, facilitating their comparison or summation.

Common Denominator

The shared multiple of the denominators of two or more fractions, used to make their denominators the same for addition or subtraction.

Combine

To combine is to join or merge two or more elements into a single unit or group.