The Resting Potential of a Neuron Is Due to All

question 87

Multiple Choice

The resting potential of a neuron is due to all of the following except:

• A) potassium being at a higher concentration inside the cell than out.
• B) sodium being at a higher concentration outside the cell than in.
• C) cells being more permeable to potassium than to sodium.
• D) the cytosol containing large molecules having a net negative charge.
• E) the sodium/potassium pump transporting 3 Na⁺ into the cell for every 2 K⁺ out.

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Definitions:

Autonomic Reflexes

Reflex actions within the body that are involuntarily controlled by the autonomic nervous system, influencing functions such as heart rate and digestion.

Stretch Reflexes

The muscle contraction in response to stretching within the muscle, a mechanism known to maintain muscle tone.

Withdrawal Reflexes

Automatic, quick responses of the body part to a painful stimulus, resulting in pulling away from the source of pain to prevent injury.

Polysynaptic

Involving multiple synapses between more than two neurons in a reflex or neural pathway.