ALL biosynthetic reactions require which of the followingmetabolites(s)?NADPHGlucose 6-PHigh energy bonds (e.g. ATP, UTP, GTP)A and BB and C

Biosynthetic reactions are the reactions that are catalysed by Enzymes to synthesise more complex…

Answered: ALL biosynthetic reactions require…

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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Cyanide poisoning inhibits aerobic respiration at cytochrome c oxidase. Which of the following is NOT a result of cyanide poisoning at the cellular level? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a b с d e Oxygen is reduced to water The rate of glycolysis increases Cells are forced to switch to anaerobic respiration The electron transport chain is not completed None of the above Answered K Open in Reading View ✔Posubmit
Substrates for the first reaction of fatty acid synthesis are linked to dolichol phosphate carrier Coenzyme A carnitine an acyl carrier protein O UDP
Assume that the following fatty acid is synthesized from acetyl-CoA in the cytosol by fatty acidsynthase. Which of the following statements is true? The last two carbon atoms that are added to the fatty acid are carbon atoms #15 and #16 Synthesis of the fatty acid needs 8 molecules of NADPH + H+ Both A and B Neither A nor B
Like many fruits, apples contain not only fructose and glucose, but also sucrose, a dimerof fructose and glucose. Synthesizing sucrose is endergonic and so not spontaneous. Onerole of ATP is to facilitate reactions that would not occur spontaneously. The threephosphate groups are electron rich and tend to repel each other. Therefore, ATP is a bitlike a compressed spring, ready to kick off one phosphate group releasing energy.Consider: Fructose + glucose --> Sucrose delta G= 6.4 kcal/mol ATP --> ADP + Pi delta G= -7.3 kcal/mol a. Draw a simple energy diagram (including the relative energy of the reactants andproducts) that shows why the sucrose synthesis reaction doesn’t occur spontaneously. b. How could having these two reactions occur at the same time help with sucroseproduction? c. Draw the energy diagram that shows all the reactants and products for the combinedreactions. d. What is delta G for the combined reactions? e. Name a few of the biological processes in the body that…
The induced fit conformational change in hexokinase occurs when— the allosteric site is saturated. ADP is released. glucose binds. ATP binds. glucose-6-phosphate is released.
Which of the following factors does not pay for the generation of NADH and ATP during steps 6 and 7 of glycolysis? a Solvation b Oxidation of an alcohol group to an aldehyde group c Enthalpy d Delocailization of electrons/Resonance
The proton-motive force drives the rotation of the Y subunit of ATP synthase. This creates conformational changes in the active sites of ATP synthase that accelerate the rate of bond formation between ADP and P, through the stabilization of a tetrahedral intermediate. True False
Which of the following statements best explains why the activity of ATP-citrate lyase and malic enzyme are often paired together? The use of ATP by ATP-citrate lyase means that NADH needs to be regenerated cytosolically so that more ATP can be generated via shuttle systems and replace the ATP used by ATP-citrate lyase ATP-citrate lyase produces ATP and malic enzyme produces NADPH, both needed in the fatty acid biosynthetic pathway The activity of ATP-citrate lyase and malic enzyme never are correlated, they always function in different realms of metabolism The generation of acetyl CoA is a substrate for fatty acid synthesis in the cytosol and NADPH is generated as the anabolic electron carrier
Which of the following doesn’t occur in the transition reaction? Pyruvic acid is oxidized Pyruvic acid is decarboxylated Pyruvic acid is reduced Acetic acid attaches to coenzyme A to form Acetyl CoA
Many factors influence the regulation of aerobic catabolism in biological cells, culminating in oxidative phosphorylation. Based on your understanding of "metabolic logic", which of the following molecules would encourage or favor catabolism? OA. ATP OB. NADH Oc. acetyl-CoA OD. ADP O E. citrate
In biological systems, anabolic and catabolic reactions are "coupled" (or linked) by: O O Glycolysis Krebs cycle Adenosine Triphosphate (ATP) Photosynthesis The Electron Transport Chain
Glycolysis is the central metabolic pathway for any cell (prokaryotic or eukaryotic) to generate energy. The primary reactant that enter glycolysis is , and the process generates 2 (= reduced (= 3 carbon molecules.) co-enzyme, electron carrier molecule), and 2 Glucose (energy carrier molecule), 2 2 NAD+ 2 ADP 2NADH 2ATP Zw Pyruvate ●●● Pyruvate

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ALL biosynthetic reactions require which of the following metabolites(s)? NADPH Glucose 6-P High energy bonds (e.g. ATP, UTP, GTP) A and B B and C