In an Action Potential, the Inflow of Positively Charged Ions

question 57

Multiple Choice

In an action potential, the inflow of positively charged ions drives the membrane potential in a positive direction, and if it surpasses a threshold around _____ mV, it increases rapidly until it reaches a peak at about +30 mV.

• A) -15
• B) -25
• C) -35
• D) -45

Apply rules of inference to validate steps within logical proofs.

Understand and use quantifiers accurately in symbolic logic.

Decode and symbolize conditional and biconditional statements accurately.

Identify and apply the quantifier negation rule correctly.

---

Definitions:

Unconditioned Response

An automatic, natural reaction to a stimulus that does not depend on prior learning.

Meat Powder

A processed product made from dried and powdered meat, used as a flavoring or nutritional supplement.

Unconditioned Response

A natural, unlearned reaction to an unconditioned stimulus that occurs without previous conditioning.

Conditioned Reflex

A learned response to a previously neutral stimulus, achieved through repeated pairings with an unconditioned stimulus.