2. Which of the following statements is CORRECT regarding the followingintermediate?H2NOHHNH2O Ornithine transcarbamolase condenses the intermediate with carbamoylphosphate to produce citrulline in the mitochondrial matrix.) The intermediate is considered a ketogenic and glucogenic amino acid.Glutamate synthase (GOGAT) can use the amide N to produce two glutamatesfollowing transamination of a-ketoglutarate.) In glutaminolysis, the intermediate undergoes amphibolic reactions to replenishintermediates into the TCA cycle.Question 14 (Which of the following statements is CORRECT regarding the followingintermediate?LACPH3CThe addition of another acetyl-ACP by HMG-ACP synthase produces 3-hydroxy-3-methylglutaryl-ACP (HMG-ACP).O It is reduced by HMG-ACP reductase using 2 NADPHS to produce mevalonate.The hydrolysis of 3-hydroxy-3-methylglutaryl-ACP (HMG-ACP) by HMG lysaseproduced acetoacetate.OB-Ketoacyl-ACP reductase uses NADPH to reduce the intermediate to B-hydroxybutyryl-ACP.

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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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Conversion of amino acid nitrogen into urea by the liver for excretion normally involves all the following enzyme activities EXCEPT O Ornithine transcarbamoylase Carbamoyl phosphate synthetase II Glutamate dehydrogenase Arginase Which of the following statements about the
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Say whether the below carbohydrates can be acted on (as the first substrate) by a transketolase, a transaldolase, or both. (Assume formaldehyde cannot be a product) OH OH Но HO OH HO HO ÓH OH OH HO HO O:
A liver cell undergoing gluconeogenesis is incubated in the presence of 14C labelled carbonic acid (H14CO3H). Soon after the incubation begins, the gluconeogenic products and intermediates from these cells are isolated. Where would you expect the radiolabelled carbon to be found? O C1 of lactate O C1 of glucose O Carbon dioxide O C3 of phosphoenol pyruvate O C1 of phosphoenolpyruvate
The enzyme that catalyzes reaction below can be classified as: CoO COO NAD+ NADH + H* Но- | malate -C- H-Ć- dehydrogenase Охaloacetate Malate isomerase lyase hydrolase oxidoreductase ligase transferase
Aminolevulinate (ALA) synthase is a pyridoxal phosphate containing enzyme displaying a non-sequential (ping-pong) enzyme mechanism. It catalyses the reaction: glycine + succinyl-CoA ⇌ aminolevulinate + CO2 Draw a Cleland diagram (diagram illustrating when the substrates and products form an enzyme substrate complex) for this reaction if glycine is the first substrate to bind.
The pyruvate dehydrogenase complex catalyzes the oxidative decarboxylation of pyruvate to form acetyl‑CoA. E1E1 , E2E2 , and E3E3 are abbreviations for the enzymes of the complex. Classify the enzyme names, prosthetic groups, and reactions as E1E1 , E2E2 , or E3E3 .
Which class of enzymes catalyzes the following reactions? CH2- CH2- CH2 H2- C- CH2 AST CH2-C CH2 CH-NH + C=O + C=0 + CH-NH ČO0 Čo0 ČO0 ČO0" Aspartate Oxoglutarate Oxaloacetate Glutamate Select one: a. Oxidoreductase O b. Isomerase O c. Ligase d. Transferase
Below is an image of the Krebs cycle: acetyl-CoA oxaloacetate COASH H20 NADH NAD* H20 malate citrate fumarate isocitrate FADH2 NAD* CO2 FAD АТР NADH + ADP succinate GTP NAD+ a-ketoglutarate H20 GDP NADH + CO2 COASH succinyl CoA COASH Consider the conversion of succinate to fumarate, which is coupled with the production the electron carrier FADH2. If this reaction was NOT coupled with the production of FADH2 (and only catalyzed the conversion of succinate to fumarate), how would this impact ATP production through cell respiration? OATP production would stop because no high energy electron carriers would be produced ATP production would still occur, but there would be a much lower ATP yield because a large number of electron carriers are no longer being made ATP production would stop because without FADH2 we will no longer have electrons moving through the electron transport chain ATP production would still occur, but there would be a slightly lower ATP yield because a small number of…
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Most fatty acids have an even number of carbons and, therefore, are completely metabolized to acetyl-CoA. A fatty acid with an odd number of carbonsis metabolized to acetyl-CoA and one equivalent of propionyl-CoA. The following two reactions convert propionyl-CoA into succinyl-CoA, a citric acidcycle intermediate, so it can be further metabolized. Each of the reactions requires a coenzyme. Identify the coenzyme for each step. From what vitaminsare the coenzymes derived? (Hint: see Chapter 23.) COO− COO−CH2CH2methylmalonyl-CoA succinyl-CoA CH3CH2 SCoA
Identify the label in the correct position in the following: C-1 of acetyl CoA to malate (one cycle) 3-14C OAA + unlabeled acetyl-CoA to succinate.

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Which of the following statements is CORRECT regarding the following intermediate? H2N H NH2