Froggy Jumps Gluconeogenesis Master QuizOnline version Test your understanding of gluconeogenesis. by piper 1 What is NOT a non-carbohydrate source of energy that could go through the gluconeogenesis process? a Fructose b Lactate c Glycerol 2 What is the major site of gluconeogenesis? a Liver b Pancreas c Gallbladder 3 Kidneys play a role in gluconeogenesis during starvation a False b True c -- 4 Gluconeogenesis occurs when carbohydrate intake is ______, and blood glucose levels are _____. a Increased, decreased b Decreased, decreased c Decreased, increased 5 Gluconeogenesis is essentially the reversal of _____? a Glycolysis b Pyruvate oxidation c Glycogenolysis 6 How many reactions in glycolysis are NOT reversible? a 2 b 1 c 3 7 What enzyme does NOT convert glucose to glucose 6-P? a Glucokinase b Hexokinase c Glucose-6-phosphatase 8 T/F Glucose 6-phosphatase converts glucose 6-P to glucose a True b False c --- 9 Where in the body does glucose turn into glucose 6-P? a Cytosol b Blood c Mitochondria 10 Which enzyme catalyzes the conversion of Fructose-1,6-bisphosphate to Fructose-6-phosphate a Fructose 1,6-bisphosphatase b Pyruvate kinase c Phosphofructokinase 11 Where in the body does pyruvate convert to oxaloacetate? a Nucleus b Cytoplasm c Mitochondria 12 What enzyme is only produced in the mitochondria? a Pyruvate carboxylase b Malate dehydrogenase c PEP carboxynase 13 Effective gluconeogenesis allows the liver to control high levels of ___ a Blood sugar b Cholesterol c Blood lactate 14 The bypass of Pyruvate Kinase is complex because the conversion of Pyruvate to Oxaloacetate occurs in the __________, while the rest of gluconeogenesis occurs in the __________. a Cytosol; Mitochondria b Mitochondria; Cytosol c Nucleus; Cytosol 15 Which enzyme is responsible for converting Pyruvate into Oxaloacetate? a Pyruvate Dehydrogenase b Pyruvate Kinase c Pyruvate Carboxylase 16 Because Oxaloacetate cannot directly cross the mitochondrial membrane to return to the cytosol, it must first be converted into: a Malate b Lactate c Citrate 17 Once in the cytosol, Oxaloacetate is converted into Phosphoenolpyruvate (PEP) by which enzyme? a Pyruvate Kinase b PEP Carboxynase c Pyruvate Carboxylase 18 The enzyme ____ converts oxaloacetate to malate and ____ converts malate to oxaloacetate. a Malate dehydrogenase, malate dehydrogenase b Oxaloacetate dehydrogenase, malate dehydrogenase c Oxaloacetate dehydrogenase, oxaloacetate dehydrogenase 19 T/F Pyruvate carboxylase converts PEP to pyruvate. a True b False c -- 20 Why can't the muscle and adipose tissue form free glucose? a Lacks glucose-6-phosphatase b Excess glucose-6-phosphatase c Excess lactate 21 Which cycle turns lactate into glucose in the liver? a Krebs cycle b Cori cycle c Urea cycle
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