Decreased extracellular K + levels causeA) cells to become more excitable.B) hyperpolarization of plasma membranes.C) more action potentials to be generated.D) increased permeability of plasma membranes.E) hypopolarization of plasma membranes.

Question

Decreased extracellular K +  levels causeA)  cells to become more excitable.B)  hyperpolarization of plasma membranes.C)  more action potentials to be generated.D)  increased permeability of plasma membranes.E)  hypopolarization of plasma membranes.

Kaitlyn Robertson · Accepted Answer

Final Answer : B, Explanation :  K +  are sphingolipids that can act as signaling molecules to regulate ion channels and transporters. Decreased extracellular levels of these sphingolipids can lead to hyperpolarization of plasma membranes by increasing the activity of potassium channels or decreasing the activity of sodium channels. This would make cells less excitable and decrease the likelihood of generating action potentials.

Decreased extracellular K⁺ levels cause

A) cells to become more excitable.
B) hyperpolarization of plasma membranes.
C) more action potentials to be generated.
D) increased permeability of plasma membranes.
E) hypopolarization of plasma membranes.

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Related questions

Decreased extracellular K+ levels causeA) cells to become more excitable.B) hyperpolarization of plasma membranes.C) more action potentials to be generated.D) increased permeability of plasma membranes.E) hypopolarization of plasma membranes.

Definitions

Learning Objectives

Learning Objectives

Related questions

Decreased extracellular K⁺ levels cause

A) cells to become more excitable.
B) hyperpolarization of plasma membranes.
C) more action potentials to be generated.
D) increased permeability of plasma membranes.
E) hypopolarization of plasma membranes.