Carbohydrate
The hormones, glucagon and epinephrine, stimulate glycogen breakdown to G-6-P

using ATP as the phosphoryl donor
directly, by binding to glycogen phosphorylase
indirectly, by first stimulating adenylate cyclase to make cAMP
only in the liver

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Carbohydrate
Which of the following statements about the energy needs of cells is false?

The most usable energy for cells comes from the rapid combustion of glucose
The laws of thermodynamics force cells to acquire energy
Many cellular reactions have an associated activation energy
Without a continuous input of energy, cell disorder will increase

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Carbohydrate
Glucagon and epinephrine

inhibits gluconeogenesis and glycolysis
inhibits gluconeogenesis and stimulates glycolysis
stimulates gluconeogenesis and inhibits glycolysis
stimulates gluconeogenesis and glycolysis

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