Concept explainers
(a)
Interpretation: To indicate whether the statement “
Concept introduction: Glucose is a monosaccharide with the molecular formula
Glycogenesis is the
In the isomerization reaction, a molecule transformed itself to another molecule, having the same number of atoms with a different arrangement.
An intermediate is defined as the transient species that is formed from the reactants in the preceding step and gets consumed in the subsequent steps to generate the products. An intermediate is formed within a multi-step reaction mechanism.
(b)
Interpretation: To indicate whether the statement “an isomerization reaction changes
Concept introduction: Glucose is a monosaccharide with the molecular formula
Glycogenesis is the metabolic pathway that converts
In the isomerization reaction, a molecule transformed itself to another molecule, having the same number of atoms with a different arrangement.
(c)
Interpretation: To indicate whether the statement “a UTP molecule is used to activate a
Concept introduction: Glucose is a monosaccharide with the molecular formula
Glycogenesis is the metabolic pathway that converts
(d)
Interpretation: To indicate whether the statement “the equivalent of two ATP molecules are produced” relating to glycogenesis is true or false.
Concept introduction: Glucose is a monosaccharide with the molecular formula
Glycogenesis is the metabolic pathway that converts
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EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- Glucose-6-phosphate isomerase is used to do which of the following steps of glycolysis Select one: a. Glucose-6-phosphate is converted to Fructose-6-phosphate b. 3-phosphoglycerate is converted 2-phosphoglycerate c. Glyceraldehyde-3-phosphate is converted to 1,3 Bisphosphoglycerate d. Glucose is converted to Glucose-6-phosphate e. Dihydroxyacetone (Glycerone Phosphate) is converted to Glyceraldehyde-3-phosphate f. Fructose-1,6 Bisphosphate is converted to Dihydroxyacetone and Glyceraldehyde-3-phosphate g. 1,3 Bisphosphoglycerate is converted to 3-phosphoglycerate h. Phosphoenolpyruvate is converted to pyruvate i. Fructose-6-phosphate is converted to Fructose-1,6,bisphosphate j. 2-phosphoglycerate is converted to Phosphoenolpyruvatearrow_forwardIdentify the following: a. An oxidative process that releases energy b. Cellular localization of the electron transport chain during cellular respiration. c. The number of double bonds present in the metabolic precursor of all prostaglandins.arrow_forwardAll of the following statements concerning glycogenesis and glycogenolysis are true EXCEPT A. Taking this test will activate glycogen phosphorylase and inhibit glycogen synthase B. Being chased by a bear will activate glycogen synthesis and inhibit glycogen phosphorylase C. Exercise or “fight-or-flight” circumstances will result in an increase in epinephrine causing increased glycogen phosphorylase and decreased glycogen synthase activities D. High blood glucose and high insulin levels will activate glycogen synthesis and inhibit glycogen phosphorylase E. Glucagon will activate glycogen phosphorylase and inhibit glycogen synthasearrow_forward
- Which of the following statements regarding formation of glucose - 1 - phosphate from glycogen is NOT CORRECT? A. It triggered by low blood glucose B. It requires ATP hydrolysis C. It is catalyzed by glycogen phosphorylase enzyme D. It involves the cleavage of an alpha (1- 4) bondarrow_forwardThe rate limiting and committed step of the pentose phosphate pathway is catalyzed by which of the following enzymes? A. Glucose-6-phosphate dehydrogenase B. Hexokinase C. 6-Phosphogluconate dehydrogenase D. Transketolasearrow_forwardDefine the following terms:a. glycolysisb. pentose phosphate pathwayc. gluconeogenesisd. glycogenolysise. glycogenesisarrow_forward
- Which of the following statements concerning the enzyme regulation is CORRECT? Select one: A. Citrate is the allosteric inhibitor of hexokinase. B. AMP is the alloseric activator of pyruvate dehydrogenase. C. Glucose-6-phosphate is the allosteric activator for phosphofructokinase. D. ATP is the activator of pyruvate kinase.arrow_forwardProtein phosphatase 1 attaches a phosphoryl group to the enzyme glycogen phosphorylase to activate it. Is this statement correct or incorrect? Choose one: a. Untrue b. Yesarrow_forwardWhich of the following is the first step of glycolysis? Select one: a. Glyceraldehyde-3-phosphate is converted to 1,3 Bisphosphoglycerate b. Dihydroxyacetone (Glycerone Phosphate) is converted to Glyceraldehyde-3-phosphate c. 1,3 Bisphosphoglycerate is converted to 3-phosphoglycerate d. Fructose-6-phosphate is converted to Fructose-1,6,bisphosphate e. 3-phosphoglycerate is converted 2-phosphoglycerate f. 2-phosphoglycerate is converted to Phosphoenolpyruvate g. Phosphoenolpyruvate is converted to pyruvate h. Glucose-6-phosphate is converted to Fructose-6-phosphate i. Fructose-1,6 Bisphosphate is converted to Dihydroxyacetone and Glyceraldehyde-3-phosphate j. Glucose is converted to Glucose-6-phosphatearrow_forward
- Which of the following is a substrate for glycogen synthase? a. UTP-glucose b. Glucose 1-phosphate c. CDP-glucose d. UDP-glucosearrow_forwardWhich of the following is the third step of glycolysis? Select one: a. Glucose is converted to Glucose-6-phosphate b. Glyceraldehyde-3-phosphate is converted to 1,3 Bisphosphoglycerate c. Dihydroxyacetone (Glycerone Phosphate) is converted to Glyceraldehyde-3-phosphate d. 1,3 Bisphosphoglycerate is converted to 3-phosphoglycerate e. 3-phosphoglycerate is converted 2-phosphoglycerate f. Fructose-1,6 Bisphosphate is converted to Dihydroxyacetone and Glyceraldehyde-3-phosphate g. Glucose-6-phosphate is converted to Fructose-6-phosphate h. 2-phosphoglycerate is converted to Phosphoenolpyruvate i. Phosphoenolpyruvate is converted to pyruvate j. Fructose-6-phosphate is converted to Fructose-1,6,bisphosphatearrow_forwardWhich of the following activate glycogen synthesis? A. Phosphorylation of glycogen synthase kinase 3 B. Activation of protein kinase A (PKA) C. Both A and B D. Neither A nor B Assuming that glucokinase is completely inhibited, which of the following statements is correct? Glycolysis reactions beyond glucose-6-phosphate in the liver would be impossible to take place The Cori cycle would be blocked Both A and B Neither A nor Barrow_forward
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