What Effect Would a Chemical That Blocks Voltage-Gated Sodium Ion

question 20

Multiple Choice

What effect would a chemical that blocks voltage-gated sodium ion channels in a neuron's plasma membrane have on its membrane potential?

• A)The membrane potential would become more positive because more sodium ions would leave the cell.
• B)The membrane potential would become more negative because more sodium ions would leave the cell.
• C)The membrane potential would become more positive because more sodium ions would enter the cell.
• D)The membrane potential would become more negative because more sodium ions would enter the cell.
• E)The membrane potential would not change because sodium could not enter the cell.

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Definitions:

Induction

Reasoning from observations to a theory that might explain the observations.

Empiricism

The view that knowledge should be based on experience and observation, on empirical as opposed to theoretical knowledge.

Positivism

A philosophical theory that asserts that genuine knowledge is based on natural phenomena and their properties and relations as verified by empirical sciences.

Rationalism

A philosophy that emphasizes reason and knowledge acquisition through deductive reasoning and logical analysis, rather than empirical evidence.