Concept explainers
(a)
Interpretation:
Whether the enzyme Hexokinase is involved in glycolysis or gluconeogenesis or in both has to be determined.
Concept Introduction:
Glycolysis:
It is the
Gluconeogenesis:
Gluconeogenesis is the metabolic pathway by which glucose is synthesized from non-carbohydrate materials.
(b)
Interpretation:
Whether the enzyme Phosphofructokinase is involved in glycolysis or gluconeogenesis or in both has to be determined.
Concept Introduction:
Glycolysis:
It is the metabolic pathway by which glucose (a
Gluconeogenesis:
Gluconeogenesis is the metabolic pathway by which glucose is synthesized from non-carbohydrate materials.
(c)
Interpretation:
Whether the enzyme Pyruvate carboxylase is involved in glycolysis or gluconeogenesis or in both has to be determined.
Concept Introduction:
Glycolysis:
It is the metabolic pathway by which glucose (a
Gluconeogenesis:
Gluconeogenesis is the metabolic pathway by which glucose is synthesized from non-carbohydrate materials.
(d)
Interpretation:
Whether the enzyme Phosphoglyceromutase is involved in glycolysis or gluconeogenesis or in both has to be determined.
Concept Introduction:
Glycolysis:
It is the metabolic pathway by which glucose (a
Gluconeogenesis:
Gluconeogenesis is the metabolic pathway by which glucose is synthesized from non-carbohydrate materials.
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Chapter 24 Solutions
EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- Hexokinase is used to do which of the following steps of glycolysis? Select one: a. Glucose is converted to Glucose-6-phosphate b. Phosphoenolpyruvate is converted to pyruvate c. Dihydroxyacetone (Glycerone Phosphate) is converted to Glyceraldehyde-3-phosphate d. Fructose-6-phosphate is converted to Fructose-1,6,bisphosphate e. 3-phosphoglycerate is converted 2-phosphoglycerate f. 1,3 Bisphosphoglycerate is converted to 3-phosphoglycerate g. 2-phosphoglycerate is converted to Phosphoenolpyruvate h. Glyceraldehyde-3-phosphate is converted to 1,3 Bisphosphoglycerate i. Fructose-1,6 Bisphosphate is converted to Dihydroxyacetone and Glyceraldehyde-3-phosphate j. Glucose-6-phosphate is converted to Fructose-6-phosphatearrow_forwardWhich of the following is NOT a component of the pyruvate dehydrogenase complex? a. dihydrolipoyl dehydrogenase b. dihydrolipoyl transacetylase c. pyruvate dehydrogenase d. dihydrolipoyl catalasearrow_forwardGlucose-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_forward
- Which of the following is the ninth step of glycolysis? Select one: a. Fructose-1,6 Bisphosphate is converted to Dihydroxyacetone and Glyceraldehyde-3-phosphate b. 1,3 Bisphosphoglycerate is converted to 3-phosphoglycerate c. Phosphoenolpyruvate is converted to pyruvate d. Dihydroxyacetone (Glycerone Phosphate) is converted to Glyceraldehyde-3-phosphate e. Fructose-6-phosphate is converted to Fructose-1,6,bisphosphate f. 3-phosphoglycerate is converted 2-phosphoglycerate g. Glyceraldehyde-3-phosphate is converted to 1,3 Bisphosphoglycerate h. Glucose-6-phosphate is converted to Fructose-6-phosphate i. 2-phosphoglycerate is converted to Phosphoenolpyruvate j. Glucose is converted to Glucose-6-phosphatearrow_forwardDefine the following terms: (2-3 sentences)1. Metabolism2. Glycolysis3. Beta oxidation4. Chemiosmosis5. Deamination6. Transamination7. Oxidation8. Reductionarrow_forwardWhich of the following enzymes is the key regulatory step in glycolysis? Phosphofructiokinase-1 is the answer. Explain? A. Phosphoglucose Isomerase B. Phosphofructokinase-1 C. Pyruvate Kinase D. Hexokiase E. Phosphofructokinase-2 ...Why is Phosphoglucose Isomerase wrong?arrow_forward
- Which of the following is the fourth step of glycolysis? Select one: a. Phosphoenolpyruvate is converted to pyruvate b. 1,3 Bisphosphoglycerate is converted to 3-phosphoglycerate c. Fructose-1,6 Bisphosphate is converted to Dihydroxyacetone and Glyceraldehyde-3-phosphate d. Glucose-6-phosphate is converted to Fructose-6-phosphate e. 2-phosphoglycerate is converted to Phosphoenolpyruvate f. Dihydroxyacetone (Glycerone Phosphate) is converted to Glyceraldehyde-3-phosphate g. 3-phosphoglycerate is converted 2-phosphoglycerate h. Glucose is converted to Glucose-6-phosphate i. Glyceraldehyde-3-phosphate is converted to 1,3 Bisphosphoglycerate j. Fructose-6-phosphate is converted to Fructose-1,6,bisphosphatearrow_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_forwardGlyceraldehyde 3-phosphate dehydrogenase is used to do which of the following steps of glycolysis Select one: a. 1,3 Bisphosphoglycerate is converted to 3-phosphoglycerate b. Phosphoenolpyruvate is converted to pyruvate c. 2-phosphoglycerate is converted to Phosphoenolpyruvate d. Glyceraldehyde-3-phosphate is converted to 1,3 Bisphosphoglycerate e. Fructose-6-phosphate is converted to Fructose-1,6,bisphosphate f. Dihydroxyacetone (Glycerone Phosphate) is converted to Glyceraldehyde-3-phosphate g. Fructose-1,6 Bisphosphate is converted to Dihydroxyacetone and Glyceraldehyde-3-phosphate h. Glucose-6-phosphate is converted to Fructose-6-phosphate i. 3-phosphoglycerate is converted 2-phosphoglycerate j. Glucose is converted to Glucose-6-phosphatearrow_forward
- The 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_forwardMatch the description with the correct enzyme. Descriptions: a. Uses alpha-keto carboxylic acid as a substrate b. Directly transfers cytosolic reducing equivalents into the electron transport chain c. Its activity depends on magnesium ions Options (enzymes): A. Mitochondrial glycerol 3-phosphate dehydrogenase B. Succinate dehydrogenase C. Cytosolic glycerol 3-phosphate dehydrogenase D. Cytochrome oxidase E. Rubisco F. α-ketoglutarate dehydrogenase complexarrow_forward10) The glycerol phosphate shuttle functions in. A) Lipid catabolism C) Anaerobic glycolysis for the regeneration of NAD 8) Triglyceride synthesis D) Aerobic glycolysis to transport NAH equivalents resulting from glycolysis into mitochondria. 11) In muscles, the pyruvate is converted into lactate. Find the correct statement A) During lactate formation, NADH is reconverted into NAD B) During the product of lactate two AT are produced C) Lactate is the substrate from the downstream pathway D) Lactate acts as the substrate for the formation of amino acid 12) Which of the following regulates lipolysis in adipocytes A) Activation of fatty acid synthesis mediated by CAMP 8) Glycerol phosphorylation to prevent futile esterification of fatty acids C) Activation of triglyceride lipase as a result of hormone stimulated increases in cAMP levels D) Activation of cAMP production by Insulin 13) Glycolysis consists of three irreversible steps. Which of the following enzyme catalyzes the reaction are…arrow_forward
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