Which of the following are examples of amplification of a hormone signal?
I. Epinephrine initiates an enzyme cascade.
II. Steroids bind hormone-response elements in the cell and initiate transcription of many genes.
III. A quantity of 0.09 mg of growth hormone leads to a 10,000-mg weight gain in a cow.
IV. Different cell types have different receptors capable of binding the same hormone.

Question

Quizplus · Accepted Answer

I) Epinephrine initiates an enzyme cascade amplifying the signal.
II) Steroids initiate the transcription of many genes, which also amplifies the signal.
III) The massive weight gain in the cow illustrates amplification of the hormone signal.
IV) Different cell types having different receptors for the same hormone allows for additional amplification of the signal.

Which of the Following Are Examples of Amplification of a Hormone