Which of the Following Statements Regarding Voltage-Gated K+ Channels Is

question 129

Multiple Choice

Which of the following statements regarding voltage-gated K+ channels is true?

• A)These channels have only one gate.
• B)These channels open more slowly than Na+ channels.
• C)Once open,these channels remain open until repolarization is complete.
• D)These channels are specific for potassium.
• E)All of these statements are true.

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Definitions:

Neurotransmitter

Chemical substances that transmit signals across a synapse from one neuron to another target neuron, muscle, or gland.

Half-Life

Time it takes for one-half of an administered substance to be lost through biological processes.

Endocrine System

A collection of glands that produce hormones which regulate metabolism, growth and development, tissue function, and mood.

Exocrine Glands

Glands that release their secretions through ducts either to the external environment or into the internal organ surfaces.