Drugs May Be Found from All of the Following Sources

question 45

Multiple Choice

Drugs may be found from all of the following sources EXCEPT

• A) plants
• B) minerals
• C) gene splicing
• D) gums
• E) air

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Definitions:

Depolarization

A change in a cell's membrane potential, making it more positive, and is an essential process in the initiation of action potentials in neurons.

Rapid Influx

A swift movement or flow of substances (such as ions) into a cell or area.

Local Potential

A transient change in the electrical charge of a neuron's membrane, which can lead to an action potential if it reaches a certain threshold.

Threshold Level

The level of stimulation that must be exceeded for a reaction or response to occur, marking the limit between inaction and action.