Which best describes how the total body balance of any chemical substance is determined?
A)The rate the body produces the substance
B)The rate the substance is secreted from the body
C)The rate the substance is metabolized by the body
D)The difference between the amount of substance lost from the body and the amount gained the body
E)The amount produced by the body minus the amount metabolized by the body

Question

Which best describes how the total body balance of any chemical substance is determined?
A)The rate the body produces the substance
B)The rate the substance is secreted from the body
C)The rate the substance is metabolized by the body
D)The difference between the amount of substance lost from the body and the amount gained the body
E)The amount produced by the body minus the amount metabolized by the body

Quizplus · Accepted Answer

The total body balance of a chemical substance is determined by the difference between the amount of substance lost from the body (through excretion, sweating, etc.) and the amount gained by the body (through ingestion, absorption, etc.). This equation is called the mass balance equation and is fundamental in pharmacokinetics and toxicology. The rate of production, secretion, or metabolism of the substance may play a role in determining the total body balance, but ultimately it is the difference between gains and losses that determines it.

Which Best Describes How the Total Body Balance of Any