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Glycogen: Quiz


Question 1: Glucose from the hepatic portal vein enters the ________ cells (hepatocytes).
Immune systemPancreasEndocrine systemLiver

Question 2: ________ is the primary enzyme of glycogen breakdown.
Glycogen synthaseGlycogen debranching enzymeGlycogen branching enzymeGlycogen phosphorylase

Question 3: ________ acts on the hepatocytes to stimulate the action of several enzymes, including glycogen synthase.
Endocrine systemAdiponectinGlucagonInsulin

Question 4: In this postprandial or "fed" state, the liver takes in more glucose from the ________ than it releases.
Blood plasmaRed blood cellPlateletBlood

Question 5: Glycogen is found in the form of granules in the ________ in many cell types, and plays an important role in the glucose cycle.
CytosolMitochondrionMetabolismCell nucleus

Question 6: Ketohexose (Psicose, ________, Sorbose, Tagatose)

Question 7: It is made primarily by the liver and the muscles, but can also be made by glycogenesis within the ________ and stomach.
BrainNervous systemSensory systemDigestion

Question 8: As a meal containing carbohydrates is eaten and digested, ________ levels rise, and the pancreas secretes insulin.
Blood sugarGlycated hemoglobinReference ranges for blood testsBlood plasma

Question 9: Glycogen is cleaved from the nonreducing ends of the chain by the enzyme ________ to produce monomers of glucose-1-phosphate that is then converted to glucose 6-phosphate by phosphoglucosemutase.
Glycogen phosphorylaseGlycogen branching enzymeGlycogen synthaseGlycogen debranching enzyme

Question 10: In ________ caused by excessive insulin, liver glycogen levels are high, but the high insulin level prevents the glycogenolysis necessary to maintain normal blood sugar levels.
ICD-10 Chapter IV: Endocrine, nutritional and metabolic diseasesEpinephrineHypoglycemiaDiabetes mellitus


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