When glucose is not available,
A)phosphoenolpyruvate forms and enters glycolysis.
B)cyclic AMP levels decrease after inactivation of adenyl cyclase.
C)cyclic AMP levels increase after activation of adenyl cyclase.
D)ATP is not converted to cAMP.

Question

Quizplus · Accepted Answer

When glucose is not available, the levels of glucose-6-phosphate and ATP decrease. This leads to the activation of adenyl cyclase, which converts ATP to cyclic AMP (cAMP), causing an increase in cAMP levels. This triggers the activation of enzymes involved in gluconeogenesis and other alternative metabolic pathways to generate energy. Therefore, choice C is the best answer because it correctly describes the effect of glucose depletion on cAMP levels.

When Glucose Is Not Available