Differences in the Rate of Activity Between Fast and Slow

question 55

Multiple Choice

Differences in the rate of activity between fast and slow ligand -gated channels are caused by

• A) G protein activity gating the fast channel.
• B) G protein activity gating the slow channel.
• C) ligand selectivity.
• D) ligand affinity.
• E) ligands gating both channels to the closed state.

---

Definitions:

Exhaustion Stage

The final stage of the stress response, as described by Hans Selye in his General Adaptation Syndrome model, where the body's ability to resist stress becomes depleted after prolonged exposure, leading to increased vulnerability to illness.

General Adaptation Syndrome

A model describing the body's short-term and long-term reactions to stress, consisting of the alarm, resistance, and exhaustion stages.

Exhaustion Stage

The final phase of the General Adaptation Syndrome, characterized by the body's depletion of physical and psychological resources following prolonged stress.

Autonomic

Relating to the autonomic nervous system, which controls involuntary actions of the body such as heart rate and digestion.