The Second Messenger in a Second Messenger System Is A(n)

question 12

Multiple Choice

The second messenger in a second messenger system is a(n) :

• A)G-protein
• B)α chain of the G-protein
• C)Enzyme inside the neuron that can trigger responses within the neuron
• D)Neurotransmitter
• E)Gene

---

Definitions:

Umami

The taste sensation produced by certain amino acids, often described as savory or meaty, recognized as one of the five basic tastes.

Two-Point Threshold

The minimum distance at which two points of contact can be felt as separate sensations, used to measure perceptual acuity or sensitivity.

Semicircular Canals

Part of the inner ear involved in maintaining balance and sensing rotation of the head.

Motion

The action or process of moving or being moved, involving change in position or location.