Multiple Choice
A half- life, in terms of a chemical messenger, refers to
A) the radioactivity of the chemical messenger.
B) how long the chemical messenger will be effective in the body.
C) the time it takes for half of the chemical messenger in the blood to be degraded.
D) the amount of time it takes to cross the plasma membrane.
E) the amount of time the messenger is bound to a protein.
Correct Answer:
Verified
Correct Answer:
Verified
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