A Fat Cell Responds to the Presence of the Hormone

question 35

Multiple Choice

A fat cell responds to the presence of the hormone epinephrine by increasing cytosolic cyclic AMP production,which leads to the catabolism of both glycogen and fat.The best explanation for this phenomenon is:

• A)Epinephrine is binding to two types of receptors in the plasma membrane
• B)The activated receptor complex stimulates production of two different second messengers
• C)Cyclic AMP can directly activate two kinds of enzymes
• D)Cyclic-AMP-dependent protein kinase can activate two kinds of enzymes
• E)All of the choices are correct

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