Glycogen metabolism is activated by*1 pointAMP (Adenosine monophosphate)High levels of ATPGlucose 6-phosphateNADP+None of these optionsAll options
Question
Glycogen metabolism is activated by*1 pointAMP (Adenosine monophosphate)High levels of ATPGlucose 6-phosphateNADP+None of these optionsAll options
Solution
Glycogen metabolism is activated by AMP (Adenosine monophosphate) and Glucose 6-phosphate.
Here are the steps:
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Glycogen metabolism involves two processes: glycogenesis (the synthesis of glycogen) and glycogenolysis (the breakdown of glycogen).
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Glycogenesis is stimulated when glucose levels are high. Glucose 6-phosphate is a key activator of glycogen synthase, the enzyme that catalyzes the addition of glucose molecules to glycogen.
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Glycogenolysis is stimulated when energy levels are low. AMP, which is a signal of low energy status, activates glycogen phosphorylase, the enzyme that breaks down glycogen.
So, glycogen metabolism is activated by AMP and Glucose 6-phosphate.
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Glycogen metabolism is activated by*
If muscle glycogen is the initial substrate, the net production of ATP resulting during glycolysis is.
n muscle tissue, adrenaline signalling results inGroup of answer choicesDephosphorylation of the bifunctional PFK-2/FBPase-2 enzyme which increases glycolysis.Phosphorylation of glycogen phosphorylase which decreases glycogenolysis.Increased levels of fructose-1,6-bisphosphate production, which allosterically upregulates pyruvate kinase.The R state of phosphofructokinase-1 is not stabilised which decreases glycolysis.
The first ATP forming reaction in glycolysis is catalysed by which enzyme?Group of answer choicesglyceraldehyde 3-phosphate dehydrogenasephosphofructokinase-1phosphoglycerate kinasehexokinase
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