In Which of These Would an Injected Drug Be the Most

question 8

Multiple Choice

In which of these would an injected drug be the most effective agonist for an endogenous chemical messenger?

• A)The drug has a lower affinity for the messenger's receptors than the messenger does.
• B)The drug achieves 50 percent saturation of the messenger's receptors at a lower concentration than that required by the messenger.
• C)The drug does not couple to the binding site of the messenger's receptor.
• D)The drug binds to an alternate binding site on the protein receptor and reduces its affinity for the endogenous chemical messenger.

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Definitions:

Flat Tax Structure

A tax system with a constant marginal rate, usually applied to individual or corporate income.

Percentage

A ratio or fraction out of 100 that is used to express how large one quantity is relative to another quantity.

Marginal Rate

The rate of increase in a variable (e.g., tax rate, substitution, technical substitution) as another variable (e.g., income, quantity of another good) increases incrementally.

Increase

An upward movement in quantity, value, or some other measure, indicating growth or accumulation.