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SalwanJ SalwanJ
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7 years ago
A half-life, in terms of a chemical messenger, refers to
A) the time it takes for half of the chemical messenger in the blood to be degraded.
B) the amount of time it takes to cross the plasma membrane.
C) how long the chemical messenger will be effective in the body.
D) the amount of time the messenger is bound to a protein.
E) the radioactivity of the chemical messenger.
Textbook 
Principles of Human Physiology

Principles of Human Physiology


Edition: 5th
Author:
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ch1990ch1990
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7 years ago
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SalwanJ Author
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7 years ago
This questions caused me stress, I swear lol Thanks
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