At normal to low blood glucose concentrations (l.e., roughly 110 mg/dl or less), the enzyme that is responsible for sequestering or trapping glucose within cells is which of the following enzymes? O hexokinase O dycogen synthase O glucose-6-phosphatase O glucokinase
Q: Which of the following statements about gluconeogenesis is CORRECT? O Glucose 6 phosphatase…
A: Here option C is correct for gluconeogenesis. Glucose-6-phosphatase hydrolyzes glucose-6-phosphate…
Q: Which enzyme activity of the glycogen debranching enzyme is operating during the release of glucose…
A: Glycogenolysis is the process of the breakdown of glycogen into glucose. The glycogen is degraded by…
Q: When you are awake and your blood sugar levels are very low which of the following enzymes would you…
A: Fructose 2,6-bisphosphate mediate the regulation of glycolysis and gluconeogenesis in the liver. It…
Q: Glycogen catabolism occurs when glucose monomers are cleaved from the glycogen molecule, catalyzed…
A: Glycogen is a polysaccharide made up of glucose monomers. It contains linear chains with α-1,4…
Q: Which of the following enzymes CANNOT be found in the skeletal muscle?
A: Glucose-6-phosphatase converts glucose-6-phosphate to glucose. Glycogen synthase is responsible for…
Q: Which of the following molecules controls the metabolic flow through both glycolysis and…
A: You have asked 2 questions. I will answer the 1st question, as per guidelines. Asked : Molecule…
Q: Which of the following is an anabolic pathway O glycogenolysis O glycolysis O gluconeogenesis O…
A: Anabolic pathway assembles the small molecules into large molecule and the catabolic pathway breaks…
Q: Which of the following are associated with a highly active Glycogen Phosphorylase pathway?
A: Glycogen phosphrylase is an enzyme which undertakes phosphoroclastic cleavage into glycogen, thus…
Q: Which of the following metabolic pathways is correctly matched with the key enzyme that regulates…
A: A regulatory enzyme is an enzyme in a biochemical pathway which, due to its ability to respond to…
Q: Which of the following steps does NOT require ATP? O A. Conversion of glucose to glucose 6-phosphate…
A: Metabolic pathways are a series of process which includes chemical reactions occurring in a cell.…
Q: Which reactions in the payoff phase of glycolysis are exergonic at standard conditions? O…
A: Glycolysis is a metabolic pathway where one molecule of glucose is converted into two molecules of…
Q: Which of the following enzymes are involved in gluconeogenesis ? a) Pyruvate carboxylase b)…
A: Gluconeogenesis is the pathway of formation of glucose from glucogenic amino acids with the help of…
Q: In what stage of catabolism does each of the following processes occur? a. cleavage of a protein…
A: "Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
Q: Consider the following reaction sequence. glucose 1-phosphate + UTP UDP-glucose +-0- UDP-glucose +…
A: Glucose is a carbohydrate molecule and is a monosaccharide or a simple sugar molecule. It is the…
Q: Which of the following molecules would inhibit, either directly or indirectly, the protein…
A: Protein phosphatase (PP1) is considered as the enzyme class of phosphatases, which plays important…
Q: Which of the following statements is (are) false of glycogen phosphorylase? 1. It degrades glycogen…
A: Glycogen is a multibranched polysaccharide of glucose. It is the storage form of glucose in the…
Q: Which of the following is incorrect about glycogen synthesis? O a. The addition of glucose is…
A: Glycogen is the reserve food material synthesised from glucose and stored in liver. Synthesised of…
Q: Glycogen de-branching enzymes carry out all of the following except hydrolyzing the alpha (1 4) bond…
A: j
Q: Which of the following is the correct summary of phase II of glycolysis for each molecule of…
A: Glycolysis is the process by which glucose is broken down to form pyruvate. The process involves…
Q: Which of the following is(are) consumed in the process of converting Elycerol to dihydroxyacetone…
A: Cellular respiration is a catabolic pathway of the process of metabolism, where a series of chemical…
Q: Glycerol generated from TG hydrolysis in adipocytes is converted by the liver into _____________,…
A: Triglycerides were a derivative of glycerol which was stored as lipid in the fatty tissue. whereas…
Q: Fluoride is an inhibitor of which of the following glycolytic enzymes? A. Glyceraldehyde 3 po4…
A: Glycolysis is the process of breakdown of glucose into pyruvate to generate energy.
Q: Which of the following is false about gluconeogenesis? Glycolysis is catabolic, while…
A: Glycolysis and gluconeogenesis are the metabolic reactions that help in the homeostasis of glucose.…
Q: Glycolysis consists of three irreversible steps. Which of the following enzyme- catalyzed reaction…
A: Glycolysis is the first stage of cellular respiration during which glucose is converted to pyruvate…
Q: Describe the gluconeogenesis. What are the substrates for gluconeogenesis? (yellow boxes) and write…
A: All living organisms are made up of cells. The cells are the basic structural and functional unit of…
Q: Conversion of amino acid nitrogen into urea by the liver for excretion normally involves all the…
A: The end products of amino acid and nucleic acid metabolism meet the urea cycle. The urea cycle is…
Q: Which of the following statements about glucose metabolism is correct? Select one: Oa. Red blood…
A: Glucose is a simple carbohydrate (monosaccharide) that serves as the major source of energy for the…
Q: A common procedure for determining the effectiveness of compounds as precursors of glucose in…
A: A glucogenic substrate is a compound that can be converted into glucose through gluconeogenesis.…
Q: Which of the following enzymes is found in gluconeogenesis but not in glycolysis? a. phosphohexose…
A: Other metabolites can be transformed into glucose through gluconeogenesis. Aside from leucine and…
Q: Glucose 6-phosphatase hydrolyzes glucose 6- phosphate to release glucose into the blood. Pyruvate is…
A: The body's metabolism is regulated by a set of enzymes that are specific to the reaction they carry…
Q: The synthesis of glucose inside the body from non-carbohydrate substances is called gluconeogenesis.…
A: It is a true false question.
Q: What is considered as the principal enzyme for the regulation of glycogenesis?
A: The principle enzyme for the regulation of glycogenesis is - c. GLYCOGEN SYNTHASE.
Q: What enzyme catalyzes the conversion of fructose 1,6-bisphosphate to fructose 6-phosphate? O…
A: Enzyme: Enzymes are proteins that enable our bodies metabolism, or chemical reactions, to go more…
Q: An a-1,6-glycosidic link is created by the: O branching enzyme. O glucose transferase. O glycogen…
A: An α-1,6-glycosidic bond is a covalent bond formed between the -OH group of carbon 1 of one sugar…
Q: A rate limiting enzyme for glycolysis is, while a rate limiting enzyme for gluconeogenesis is . O…
A: Glycolysis is a metabolic pathway. In this pathway, the glucose is broken down and energy in the…
Q: Which of the following biochemical reactions should be classified as endergonic (endothermic)?…
A: An endergonic chemical reaction is a reaction in which the standard change in free energy is…
Q: In a diabetic liver, which of the following pathways would be constantly active? O glycolysis O…
A: Introduction: The series of chemical reactions that occur in the living body together known as…
Q: Which of the following is the product of the oxidation of glucose at C1 & 6? O A. Sorbitol B.…
A: Oxidation of glucose in presence of oxygen produces carbon dioxide and water along with good amount…
Q: What is the condition associated with a deficiency on enzyme phenylalanine hydroxylase? albinism…
A: Enzymes are the catalysts that carry out biochemical reactions. These are proteins in nature.…
Q: Patients with von Gierke’s disease (a glycogen storage disease) lack glucose-6- phosphatase…
A: Von Gierke's disease is also called as glycogen storage disease type I. It is a genetic disorder…
Q: Which of the following is a correct ranking of molecules with respect to their energy value in…
A: Cellular respiration is a bunch of metabolic responses and cycles that happen in the cells of living…
Q: An allosteric regulator of glycogen synthase is: UDP-glucose. cAMP. glucose 1-phosphate. ATP.…
A: Introduction: The enzymes glycogen synthase and glycogen phosphorylase control the allosteric…
Q: Each of the following molecules is processed by glycolysis to lactate.How much ATP is generated from…
A: Glycolysis is the process that occurs in the cytoplasm irrespective of the presence or absence of…
Q: hich of the following glycolytic enzymes catalyzes the conversion of fructose-1,6-bisphosphate into…
A: There are 8 steps in glycolysis. 1st step is catalyzed by hexokinase. 2nd step an isomer converts…
Q: Which
A: Anaerobic glycolysis:- All tissues have a requirement for glucose to function normally. Glycolysis…
Q: Which glycolysis reactions are catalyzed by the following enzymes?(a) Pyruvate kinase(b)…
A: Glycolysis is the process, during which glucose molecule is converted into molecules of pyruvate.
Q: One molecule of dietary glucose can be oxidized through glycolysis and the citric acid cycle to…
A: Glycogen is a polymer of glucose that was linked by α1-4 glycosidic bond and α1-6 glycosidic bond.…
Q: When glycogen is synthesized in both the liver and muscle,
A: When glycogen is synthesized in both the liver and muscle,all the following are true, EXCEPT option…
Q: Identify the enzymes that are required for the synthesis of a glycogen particle starting from…
A: All biochemical processes and the reactions involved in them have together termed metabolism.…
Q: Which of these enzymes is not involved in both glycolysis and gluconeogenesis Phosphoglycerate…
A: Glycolysis is the splitting of a glucose molecule into two pyruvate molecules. The glycolysis takes…
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- The control of which enzyme exerts the most control on glycolysis? hexokinase phosphofructokinase glucose-6-phosphatase aldolaseWhen glycogen is degraded (catabolized), all of the following occur in both liver and muscle EXCEPT Active glycogen phosphorylase catalyzes the phosphorolysis of alpha-1,4- glucosidic bonds in glycogen. The conversion of glycogen phosphorylase a to glycogen phosphorylase b is a major control step. Glucose-1-phosphate is converted to glucose-6-phosphate by phosphoglucomutase. High concentrations of glucose and AMP act as important control factors. Debranching enzyme catalyzes the hydrolysis of alpha-1,6-glucosidic bonds in glycogen.Which of the following glycolytic enzymes catalyzes the conversion of fructose-1,6-bisphosphate into the two product molecules dihydroxyacetone phosphate, and glyceraldehyde-3-phosphate? phosphoglycerate kinase pyruvate kinase malate dehydrogenase aldolase phosphofructokinase
- Ribose-5-phosphate is produced by oxidative decarboxylation of 6-phosphogluconate catalyzed by the enzyme glucose-6-phosphate dehydrogenase. True O FalseDescribe the gluconeogenesis. What are the substrates for gluconeogenesis? (yellow boxes) and write the names of the enzymes belong to the gluconeogenic pathway. Glucose 4 se-6-phosphate usphoglucose isomerase Fructose-6-phosphate Fructose-1,6-bisphosphate HAidolase Triose phosphate Dihydroxyacetone phosphate isomerase Glyceraldehyde 3-phosphate P.. NAD CH,OH Glyceraldehyde 3-phosphate dehydrogenase 1,3-Bisphosphoglycerate CH,OPO,- NADH ADP Phosphoglycerate kinase ATP 3-Phosphoglycerate Phosphoglycerate || mutase 2-Phosphoglycerate 2 X Enolase Phosphoenolpyruvate GDP, CO, GIP Oxaloacetate ADP + P, 1 ATP, HCOS PyruvateYou have a crude lysate sample (CL) containing a mixture of six proteins (1, 2, 3, 4, 5, ẞ- galactosidase), and your goal is to obtain purified ẞ-gal. Some characteristics of these proteins are shown in the table below. Protein Alcohol dehydrogenase Carbonic anhydrase Insulin B chain Phosphorylase B Glutamic dehydrogenase B-galactosidase 45% Concentration of ammonium sulfate (AS) required for precipitation Molecular Weight (kDa) Isoelectric point (pl) 38 3.7 80% 65% 20% 30% 45% 28 4.8 4 5.3 98 6.8 49 9.5 115 5.3 You begin your purification by performing an ammonium sulfate (AS) precipitation. You add the appropriate concentration of AS to your CL sample, incubate overnight at 4°C, then centrifuge to generate a supernatant (AS-S) and pellet (AS-P). What concentration of AS will you use to precipitate Glutamic dehydrogenase? © 20% O 30% 45% 65% 80%
- What glycolytic intermediate is fructose converted to in the muscle, such that it can be utilized in glycolysis? Glucose 6-phosphate Fructose 6-phosphate Glyceraldehyde 3-phosphate Dihydroxyacetone phosphateWhat is the effect of a defective a(1→ 4) phosphatase in Pompe's disease (GSD II)? O Accumulation of abnormal, unbranched glycogen, leading to heart or liver failure and short fife expectancy O Glycogen accumulation in heart, leading to heart failure, muscle weakness, short life expectancy O Absence of UDP-glucose conversion to glycogen, leading to lack of muscle glycogen, exercise intolerance Glycogen accumulation due to lack of glucose-6-phosphate conversion to glucose, leading to liver enlargement, hypoglycemia, short life expectancy O Lack of complete degradation of glycogen to glucose. leading to mild hypoglycemia, enlarged liver and muscle weakness Submit Request AnswerIf the brain needs glucose, then gluconeogenesis stops after reaction (9, 8, 10, 2) because (phosphoenolpyruvate, glucose, glucose-6-phosphaet, fructose-6-phosphate) can be exported from the hepatocyte using a transporter.
- Consider the following reaction sequence. glucose 1-phosphate + UTP UDP-glucose +-0-P-0- UDP-glucose + (glucose), UDP + (glucose),+1 Which of the following characterizes this process? consumes energy O all of these anabolic O a step in gluconeogenesisWhy does the lack of glucose 6-phosphatase activity in the brain and muscle make good physiological sense? Glucose 6-phosphatase allows cells to trap glucose in the cell; however, these tissues primarily rely on noncarbohydrate energy sources. Glucose 6-phosphatase allows cells to generate glucose through gluconeogenesis; however, gluconeogenesis only takes place in the liver. Glucose 6-phosphatase allows cells to release glucose into the blood; however, these tissues should never release glucose. Glucose 6-phosphatase provides glucose 6-phosphate for glycogen synthesis; however, these tissues do not need glycogen.Which enzyme activity of the glycogen debranching enzyme is operating during the release of glucose units linked to glycogen branchpoints via a1,6 glycosidic linkage? O phosphorylase activity O phosphatase activity O transferase activity O glucosidase activity
