5. During prolonged fasting, amino acids derived from muscle proteins andconnective tissue become the main substrate for gluconcogenesis. How doesglutamate enter the gluconeogenesis? For answer:a) write a reaction of the glutamate conversion into a-ketoglutarate, name theenzyme, indicate the encrgy effect of the reaction;b) draw a diagram for the a-ketoglutarate conversion to oxaloacetate andconsequent including of OAA to gluconcogenesis, specify the reactionsassociated with ATP consumption;c) name the hormones that accelerate gluconeogenesis during fasting andregulatory enzymes of the process; and describe the mechanism of signaltransduction by these hormones.

Answered: Image /qna-images/answer/aa317887-21e9-41a0-9f54-6ecdc2f72ab3.jpg

Answered: 5. During prolonged fasting, amino…

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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Similar questions

. Name the three unique reactions in gluconeogenesis.
Select which of the following enzymes unique to glycolysis are also sites of regulation for glycolysis. Select all that apply. a) glyceraldehyde 3 P dehydrogenase b) PFK c) pyruvate kinase d) hexokinase e) enolase f) phosphoglycerate mutase
In the Cori cycle, the lactate product of glycolysis in muscle is transformedback into glucose by the liver. (a) List the enzymes involved in the lactate → glucose pathway. (b) What is the net gain/loss of ATP for one round of the Cori cycle (glucose → lactate → glucose)?
Which of the following is a correct ranking of molecules with respect to their energy value in glycolysis (note: >means “greater than”)? (a) two pyruvates > one glucose (b) one glucose > one fructose-1,6-bisphosphate (c) twoglyceraldehyde-3-phosphates (G3P) > one glucose (d) two pyruvates > one fructose-1,6-bisphosphate (e) two pyruvates > two glyceraldehyde-3-phosphates (G3P)
Back in the 1930s, a chemical called DNP (2,4-Dinitrophenol) was prescribed as a weight loss pill. Describe how DNP is a metabolic poison , and why it was thought to be a good mechanism for weight loss?
A. List all the materials required for beta-oxidation of fatty acids. How does this process differ from the Biosynthesis of fatty acids? B. Outline the pathway involved in the synthesis of cholesterol from six-carbon intermediate Mevalonate. C. Describe all the stages involved in the urea cycle (Transmination, Ammonia Transport, and stages of the urea cycle).
Glycogen is the major animal storage polysaccharide, and is a polymer of glucose. a) List ALL the biochemical steps involved in storing GLUCOSE as glycogen b) Give NAME/S of the ENZYMES involved in EACH listed step c) What PULLS the reaction forward? d) Give the NAME of the tissue where these steps occur. (HINT: remember glycogen is branched chain).
1. What are the numbers of carbon atoms derived from the first acetyl-CoA that binds to fatty acid synthase complex in palmitate, the end product of the pathway? For the answer: a) name the initial substrates for fatty acid synthesis and their source; b) draw the reactions of the first spiral of fatty acid synthesis; b) mark the carbon atoms (*) derived from the first acetyl-CoA in the product of the first spiral of fatty acid synthesis; c) answer the question of the problem.
Choose which enzyme is likely deficient based on the symptoms described below: Elevated blood lactate, alanine and pyruvate a) lactate dehydrogenase d) citrate synthase c) pyruvate dehydrogenase d) pyruvate kinase
(a) Briefly describe the relationship between intracellular malonyl- CoA levels in the liver and the control of ketogenesis. (b) Describe how the action of glucokinase helps the liver to buffer the level of blood ghucose.
7) What are the major pathways of glucose utilizations that are vary with physiological conditions, and organisms? (Describe the three possible fates of pyruvate) .

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