Choose the One Alternative That Best Completes the Statement or Answers

question 332

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
Indicate whether the function is one-to-one.
- $$\{ ( 3 , - 12 ) , ( 7,4 ) , ( 12 , - 8 ) \}$$

• A) Yes
• B) \(\mathrm { No }\)

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Definitions:

Neuronal Membrane

The cell membrane surrounding a neuron, which controls the movement of substances in and out of the cell and facilitates electrical signaling.

Saltatory Conduction

Fast propagation of an action potential at successive nodes of Ranvier; saltatory means “leaping.”

Nodes Of Ranvier

Gaps in the myelin sheath around nerve fibers where the axon is exposed and action potentials are regenerated.

Sodium-Potassium Pumps

Membrane proteins that help maintain cellular homeostasis by actively transporting sodium out of cells and potassium into cells.