. Avidin is a protein that binds extremely tightly to biotin, so avidin is apotent inhibitor of biotin-requiring enzyme reactions. Consider glucose biosynthesis from cach of the following substrates and predict which of thesepathways would be inhibited by avidin.(a) Lactate(b) Oxaloacetate(c) Malate(d) Fructose-6-phosphate(e) Phosphoenolpyruvate

The synthesis of glucose from various precursors in the body is called gluconeogenesis. Glucose is…

Answered: . Avidin is a protein that binds…

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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The conversion of glucose-6-phosphate to fructose-6-phosphate in the glycolytic pathway (Choose all that apply) O positions a carbonyl group on carbon 2 of fructose-1-phosphate O positions an amino group NH2 on carbon 3 of fructose-1-phosphate O positions a carbonyl group on carbon 3 of fructose-1-phosphate O is an aldose-keto isomerization O positions a primary alcohol function at carbon C-1 that facilitates phosphorylation of fructose-6-phosphate O is a keto-aldose isomerization O positions an amino group NH2 on carbon 2 of fructose-1-phosphate
Palmitoleic acid, 16:1Δ⁹ hexadecaenoic acid, (16 carbon FA with one double bond )is an important fatty acid component of TAGs and cell membranes. Briefly explain the process of beta oxidation of this fatty acid and the number (only) of FADH, NADH and acetyl CoA outcome. What is the total ATP (only number) generated from this fatty acid after beta oxidation.
primary structure of glutamate Dehydrogenase in bacillus subtilis.
Can you give me more expalination of Oxidation Deamination formation of -ketoglutaric acid and NH4+ from glutamate in the presence of glutamate dehydrogenase What is the rule for glutamate to oxaloacetate to form α-ketoglutarate and aspartate?
BIOCHEMISTRY. Could glycerol be used to regenerate the OAA for maintenance of TCA cycle activity? Yes or No? Explain.
Considering the complete oxidation of an 18-C fatty acid. Give the answer to the following question.a. What is the total number of NADH produced in TCA if all of the acetyl CoA enters the cycle? b. What is the total number of FADH2 produced in TCA if all the acetyl CoA enters the cycle?c. How much ATP is produced in the overall oxidation?
Fatty acid biosynthesis provides for energy storage over [ Select ] ["longer", "shorter"] time periods than that of glycogen. It is assembled by sequential addition of [ Select ] ["three carbon units", "2 carbon units, acetyl-CoA"] . Fatty acid synthesis occurs in [ Select ] ["the mitochondrial matrix", "the cytoplasm"] and generation of [ Select ] ["Malonyl-CoA", "acetyl-CoA"] is rate limiting. Fatty acid synthase, by multiple rounds of carbon molecule addition, achieves the generation of palmitate, with the consumption of [ Select ] ["ATP and NADPH", "phosphocreatine and NADH"].
The Payoff Phase of Glycolysis in Skeletal Muscle In the skeletal muscle, in anaerobic conditions, glyceraldehyde 3- phosphate is converted into pyruvate during the payoff phase of glycolysis; and this pyruvate is reduced into lactate during lactic fermentation. 1-Write the 11 balanced biochemical equations corresponding to all| the reaction steps leading to the conversion of glyceraldehyde-3- phosphate into lactate through glycolysis followed by lactic fermentation. 2-Write the net equation of the whole transformation process (i.e. with glyceraldehyde-3-phosphate as the starting substrate; and lactate as the end product).
Glycolysis After digestion of carbohydrates, glucose enters the cell membrane and into the cytoplasm, glycolysis takes place where glucose-6-phosphate (a 6C-molecule) is split into two 3C molecules of gly-3-P, producing 2 pyruvates. The two pyruvates are then converted to two acetyl-CoA and enter the mitochondria where the citric acid occurs. 1.The conversion from glu-6-P to fru-6-P involves isomerization, why? Please answer
Fatty acid degradation stimulates the citric acid cyclethrough the activation of pyruvate carboxylase by acetylCoA. Why would the activation of pyruvate carboxylaseincrease energy generation from fatty acids?
help with filling in the blanks The amino acid [alanine/aspartate/glutamate] can be transaminated to a- ketoglutarate, the amino acid [alanine/aspartate/glutamate] can be transaminated to pyruvate, and the amino acid [alanine/aspartate/glutamate] can be transaminated to oxaloacetate. As a result, all three amino acids are considered [glucogenic/ketogenic/metagenic]. The carbon of urea comes directly from [carbon dioxide/a-carbon of an amino acid/glucose]. The nitrogen atoms in urea come from [ammonia/DNA/pyruvate] and [aspartate/glutamate/alanine] directly.
Structure, function, Oxidative decarboxylation of pyruvate reactions and mechanisms of activity regulation of pyruvatedehydrogenase multi-enzyme complex.

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