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

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

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

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
The most usable energy for cells comes from the rapid combustion of glucose

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Carbohydrate
The function of gluconeogenesis is

recovery of lactate from fermentation and glycerol from fat breakdown
a pathway for the utilization of amino acids
maintenance of blood glucose levels during starvation or a low carbohydrate diet
All of these

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