Three-Quarters of the Substantial Amount of Energy Consumed by the Brain

question 9

Multiple Choice

Three-quarters of the substantial amount of energy consumed by the brain is used to run a single molecular machine that maintains the resting potential of neurons.What is this machine called?

• A)K⁺ leak channel
• B)sodium-potassium pump
• C)acetylcholine receptor
• D)voltage-gated sodium channel

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Definitions:

Aversive Stimulus

An unpleasant or harmful stimulus used to reduce or eliminate an undesirable behavior.

Weaken Response

A decrease in the strength or effectiveness of a reaction or response in a given situation.

Classical Conditioning

A learning process that occurs through associations between an environmental stimulus and a naturally occurring stimulus, leading to a learned response.

Maladaptive Emotional Reactions

Emotional responses that are counterproductive to a person's current situation or well-being, interfering with normal functioning.