In the first stage of glycolysis, the hydroxylgroup on C6 of glucose is phosphorylatedto form glucose-6-phosphate (G6P). In thisreaction, which of the following statementsis true?a.O b.d.e.Glucose kinase is used to catalyze the reaction.Hexokinase is used to catalyze the reaction.A molecule of NADH is synthesized.One ATP is synthesized.Fructose kinase is used to catalyze the reaction.

In the first step of glycolysis, glucose is phosphorylated at C6 to form Glucose 6-phosphate. The…

Answered: In the first stage of glycolysis, the…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Glucose must be activated a. The activation process produces 3 ATP. b. In the digestive system before being oxidized in the mitochondria c. In the mitochondria before being oxidized in the cytoplasm d. In the blood before being oxidized in the cytoplasm
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 Phosphoenolpyruvate
In the liver, gluconeogenesis can be used to convert the following compound(s) into glucose: Select one :- a. All of these b. Lactate C. Some amino acids d. Glycerol
Which of the following statements is NOT true about Krebs Cycle? a. Krebs cycle is composed of 8-step enzymatic reactions. b. For every CO2 released in the cycle, NADH is produced. c. Succinyl-CoA allows the phosphorylation of GDP (Guanosine Diphosphate) d. The carbon atoms from the glucose that enters the cycle are released from the mitochondrion immediately.
The oxidation state of critical cofactors plays an important role in regulating cell metabolism. Which of the following correctly describes the relationship between oxidation states and a cellular process? A. An increased NAD+/NADH ratio will drive fatty-acid synthesis. B. An increased FADH2/FAD ratio will drive ATP production. C. A decreased FADH2/FAD ratio will increase the activity of ATP synthase. D. A decreased NADH/NAD+ ratio will drive fatty-acid oxidation. answer choice is D, can anyone explain to me why through catabolism and anabolism and energy I have not gone through glycolysis or krebs cycle, synthesis or oxidation yet so if someome could explain it in laymens terms that would be great
The first roadblock to overcome in the synthesis of glucose from pyruvate is which of the following reactions? a. Fructose 6-P to Fructose 1,6-bis-P b. Pyruvate to Oxaloacetate c. Pyruvate to Phosphoenolpyruvate d. Phosphoenolpyruvate to Pyruvate
What is the consequence of complete inhibition of all mutases in liver cells?a. Liver cannot provide free glucose to maintain blood glucose levelsb. Free glucose cannot be released from glycogenc. Glycerol cannot be converted to glucosed. The only fate of glucose-6-phosphate is to be converted to fructose-6-phosphate
Glycogen phosphorylase degrades glycogen by: a. An hydrolysis reaction. b. An oxidation-reduction reaction. c. A phosphorolysis reaction. d. A transferase reaction
When one acetyl CoA is processed through the citric acid cycle, how many times does each of the following events occur? a. A FAD molecule is a reactant. b. A CoA-SH molecule is produced. c. A dehydrogenase enzyme is needed for the reaction to occur. d. A C5 molecule is produced.
Pyruvate is transformed to Acetyl-CoA in one of two ways: a. in the cytoplasm by an oxidative carboxylation process b.Through the mitochondrial matrix's oxidative decarboxylation mechanism C. In the mitochondrial matrix, via a dehydration process d.Through the liver's glucose-6-phosphatase
Which of the following steps occurs during the payoff phase of glycolysis? A. the conversion of phosphoenolpyruvate to pyruvate B. the conversion of fructose 6-phosphate to fructose 1,6-biphosphate C. the conversion of glucose 6-phosphate to fructose 6-phosphate D. the conversion of glucose to glucose 6-phosphate
Your body produces lactic acid under anaerobic conditions. What is the purpose of your body producing lactic acid? Select one: a. Lactic acid serves no purpose other than to regulate NAD+. b. Lactic acid combines with co-enzyme A, and then enters the citric acid cycle once O2 becomes available. c. The purpose of Lactic acid is the increase acidity in your blood. d. Lactic acid is utilized as a fuel source by our muscles.

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