Reaction 10 of glycolysis involves the generation of pyruvate fromphosphoenolpyruvate (PEP). ATP is also generated in this reaction. Thisreaction is catalysed by the enzyme?a. Pyruvate isomeraseO b. Pyruvate synthaseC.Pyruvate enolaseO d. Pyruvate Kinase

Glycolysis is a metabolic pathway in our body which generates pyruvic acid from glucose . The…

Answered: Reaction 10 of glycolysis involves 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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Which 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?
During which of the following conversions is NADH+H+ formed in the glycolysis cycle? a. Glyceraldehyde 3-phosphate to 1,3-bisphosphoglycerate b. 1,3-bisphosphoglycerate to 3-Phosphoglycerate c. 2-Phosphoglycerate to Phosphoenolpyruvate d. Phosphoenolpyruvate to Pyruvate
Which step in glycolysis is an example of substrate-level phosphorylation? OA. Step 1: glucose + ATP →→ glucose 6-phosphate + ADP + Pi B. Step 3: fructose 6-phosphate + ATP C. Step 7: 1,3-bisphosphoglycerate D. Step 10: phosphoenolpyruvate E. Both c and d ->>> fructose 1,6-bisphosphate + ADP + P₁ + ADP + P₁ → 3-phosphoglycerate + ATP -> + ADP + Pi → pyruvate + ATP
In the last step of glycolysis, phosphoenolpyruvate (PEP) is converted to pyruvate and during this reaction ATP is synthesized. Based on the fact that ATP is synthesized, which of the following enzymes would most likely catalyze this reaction? a. enolase b. pyruvate kinase c. aldolase d. pyruvate isomerase e. pyruvate dehydrogenase
Which intermediates of glycolysis are used to generate ATP by substrate-level phosphorylation? a. Fructose-1,6-bisphosphate b. Glyceraldehyde-3-phosphate c. 1,3-Bisphosphoglycerate d. 2-Phosphoglycerate e. Phosphoenolpyruvate
Identify the conversion which is not involved in glycolysis. a.Glucose to glucose 6-phosphate by hexokinase b.Triose phosphate to 2-phosphoglycerate by phosphoglyceromutase c.PEP to pyruvic acid by pyruvate kinase d.Sucrose to glucose and fructose by invertase
Pyruvate dehydrogenase complex is the key enzyme that regulates the TCA cycle. De-phosphorylation of this enzyme by phospho-protein phosphatase makes it active. Which of the following compounds is expected to activate phospho-protein phosphatase? Acetyl COA a. O b. NADH Ca²+ O C. O d. ATP
Are the following up or down regulation of phosphorylation? (Note: It assumes that the enzymes were involved in glycoysis) a. Phosphofructokinase-2 b. Pyruvate Kinase c. Phosphofructokinase-1 d. Pyruvate Dehydrogenase Kinase
Steps in oxidative phosphorylation involves all of the following except 11. a. The phosphorylation energy is supplied by ATP metabolism b. Electron transfer chain moves electron from NADH and FADH2 to O2 c. Phosphorylation of ADP to ATP catalyzed by ATP synthase d. Electron do not flow to oxygen unless ATP is needed 12. List factors that can activate glucokinase for glucose metabolism in the liver 13. What are the functions of macromolecules with examples? Write the general balanced equation that shows the catabolism of glucose (GLYCOSLYSIS) to ATPS, carbon dioxide, and water. Include in the equation the formation of ATP from ADP and phosphate and oxygen utilization. 14. 15. What is post-translational processing of proteins and list 3 things that can happen to the proteins synthesized at this stage:
Increased citric acid levels in the blood will stimulate which of the enzymes listed below? Select one: O a. transketolase O b. pyruvate carboxylase O c. enolase d. acetyl-CoA carboxylase O e. transaldolase No of ATP formed per turn of the citric acid cycle. Select one: O a. 7 Ob. 10 O c. 9 O d. 12 The most abundant product of the reactions of the Krebs cycle is Select one: O a. GTP O b. carbon dioxide c. reduced co-enzymes O d. pyruvate O e. water A regulator of the enzyme glycogen synthase is: Select one: O a. pyruvate b. 2,3 bisphosphoglycerate (2,3 BPG) O c. GTP O d. citric acid O e. glucose-6-phosphate Clear my choice
Glycolysis and Krebs cycle pror TWGPalygXphYW9-zKh7Bt-bdNc75nprw176dBUWOA mResponse 23. Select the situation that will NOT happen if ATP synthase is not functioning. O A. Damage to the chemiosmosis process. B. The number of ATP produced is reduced. C. ATP can be produced through oxidative phosphorylation. D. Accumulation of proton ions in the intercellular membrane. 24. Oxidation of organic compounds that produced carbon dioxide, water and release of free energy causing reduction of the final acceptor molecule: oxygen. Justify the reason. ray bonds than those in
Glycolysis is often split up into three phases: 1. Energy Investment 2. Sugar Splitting and 3. Energy Payoff. After splitting the 6-carbon sugar, Fructose 1,6-biphosphate, 4 ATP are generated by substrate-level phosphorylation. What is substrate-level phosphorylation? A. ATP generated by chemiosmosis B. ATP generated by the direct transfer of a phosphate from an organic molecule to ADP C. ATP generated by the fermentation of alcohol D. Transfer of phosphates between glucose molecules E. All of the above

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Reaction 10 of glycolysis involves the generation of pyruvate from phosphoenolpyruvate (PEP). ATP is also generated in this reaction. This reaction is catalysed by the enzyme? a. Pyruvate isomerase O b. Pyruvate synthase Pyruvate enolase С. O d. Pyruvate Kinase