Refer to the Figure Shown

question 21

Multiple Choice

Refer to the figure shown.
In the figure, which region best represents the K_m of the highest affinity enzyme?

• A) I
• B) II
• C) VII
• D) IV

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Definitions:

Action Potential

A rapid, temporary change in the electrical membrane potential of a neuron or muscle cell, allowing the transmission of signals.

Relatively Refractory Period

A phase following the absolute refractory period during which a neuron requires a stronger than normal stimulus to fire an action potential.

Absolutely Refractory Period

A phase following action potential in neurons during which no new action potential can be initiated, regardless of the strength of the incoming signal.

Tetraethylammonium (TEA)

Tetraethylammonium (TEA) is a chemical compound known to block potassium channels in cells, used in research to understand ion channel functions and in studying neural and muscular activity.