Which Statement Is True About Up-Regulation and Down-Regulation

question 63

Multiple Choice

Which statement is true about up-regulation and down-regulation?

• A) Up-regulation is the decrease in the number of receptors for a given hormone and down-regulation is the increase in the number of receptors for a hormone.
• B) Up-regulation is the increase in the amount of hormone and down-regulation is the decrease in the amount of hormone.
• C) Up-regulation is the increase in the number of receptors for a given hormone and down-regulation is the decrease in the number of receptors for a hormone.
• D) Up-regulation is the increase in the number of receptors for a given hormone and down-regulation is the decrease in the amount of hormone.

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