In Order to Have Full Activity,some Enzymes Require Certain Metal

question 73

Multiple Choice

In order to have full activity,some enzymes require certain metal ions,such as Mg²⁺ or Zn²⁺.This component is called a

• A)cofactor.
• B)coenzyme.
• C)regulator.
• D)substrate.
• E)inhibitor.

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Definitions:

Variable Costs

Costs that fluctuate in direct proportion to the amount of production or sales figures.

Fixed Costs

Overhead expenses that remain consistent regardless of changes in the level of production or sales activities.

Relevant Range of Operations

The range of activity within which the assumptions about variable and fixed cost behavior are valid, used for budgeting and planning purposes.