Activity of the Neurotransmitter Acetylcholine Is Brief Because It

question 58

Multiple Choice

Activity of the neurotransmitter acetylcholine is brief because it

• A) is pumped out of the synaptic cleft by the sodium- potassium pump.
• B) is transported back into the presynaptic neuron.
• C) diffuses out of the synaptic cleft.
• D) is rapidly broken down by enzymes in the synaptic cleft.
• E) "self- destructs" shortly after leaving the presynaptic neuron.

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Definitions:

Internal Rate

Often referring to the Internal Rate of Return (IRR), it's the discount rate that makes the net present value (NPV) of all cash flows from a particular project equal to zero.

Cash Flows

The total amount of money being transferred into and out of a business, especially as affecting liquidity.

Outlay

The amount of money spent on a particular expense or investment.

Payback Period

The time it takes for an investment to generate an amount of income or cash equal to the cost of the investment.