In the regulation of glycogenolysis in liver cells, binding of the hermone_ leads to the release of the second messenger _ that is responsible for initiating the reactions that lead to the conversion of glycogen to glucose 1-phosphate.
Added by Monica H.
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The hormone that triggers this process is glucagon. Show more…
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What second messenger is formed in response to glucagon binding to its receptor?
When glucagon binds to its receptor on the membrane of the liver cell, intracellular cAMP is produced and activates protein kinase, which in turn activates glycogen phosphorylase - the enzyme that breaks down glycogen to glucose-1-phosphate. In relation to this signaling cascade, which of the following correctly describes cAMP? A Effector protein B Signal distributor C Signal transducer D Second messenger E Cellular response Question 14 Kinases and phosphatases are essential in the cell because they directly ________ A turn proteins "ON and OFF" through changes in phosphorylation status. B bind and release calcium ions. C bind hydrophobic hormones in the cytoplasm. D destroy IP3, turning off that signaling pathway. E activate and repress genes.
Adi S.
When glucagon binds to its receptor on the membrane of the liver cell, intracellular cAMP is produced and activates protein kinase A, which in turn activates glycogen phosphorylase, the enzyme that breaks down glycogen to glucose-1-phosphate. In relation to this signaling cascade, which of the following correctly describes cAMP? A Signal distributor B Cellular response C Second messenger D Signal transducer E Effector protein
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