• Draw out the pathway for the biosynthesis of the followingtriacylglycerol starting with dihydroxyacetone phosphate and thecomponent fatty acids as it occurs in the adipose tissue. Show thestructures of all reactants and products, as well as the names of theenzymes. You do not need to draw the structures of ATP, NAD+, COA,etc., but do show them as reactants or products in the appropriateplaces. You do not need to show the mechanisms of the enzymes.H₂C-H—C—[1220625H₂C-0номHOM 12 STACGLOuULJ obcju

Triacylglycerols are synthesized in the endoplasmic reticulum of cells. The process begins with the…

Answered: Draw out the pathway for 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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Similar questions

Explain the purpose of the glycerol 3 phosphate shuttle (Don’t worry about the mechanism, just the purpose of the shuttle. Just one sentence here!). Suppose a cell could only rely on the glycerol 3 phosphate shuttle and not the malate-aspartate shuttle, how would that affect the amount of ATP that could be generated from the complete oxidation of 1 molecule of glucose in that cell? How would this change the amount of ATP that could be generated from the complete oxidation of 1 molecule of palmitate in this cell?
Fatty acids are activated for breakdown through the action of acyl-CoA synthestase. Which of the following statements regarding acyl-CoA synthetase is not true? ● It catalyzes the addition of CoA to the fatty acid One of the products of the reaction is ADP. O The free energy change for the reaction catalyzed by this reaction is close to 0 kJ/mol, but the subsequent hydrolysis of pyrophosphate drives the reaction forward. O The reaction results in the formation of a thioester bond.
Using diagrams show the pathway that is used to convert succinate to phosphoenol-pyruvate, which can be used to make glucose through gluconeogenesis. Be sure to show the structure of all of the intermediates along the pathway and show the name of each enzyme over the arrow. Also be sure to indicate other co-substrates or cofactors required (ie. ATP, NAD+, FAD, etc…)
Fill in the blanks below (input numbers only!) about the metabolism of hexanoic acid, a fatty acid that is one of the components of vanilla, and whose formula is CH3(CH2)4COOH: First, the fatty acid is activated by attaching CoA, which costs ATP molecules. The fatty acid is then broken down through a beta-oxidation spiral, to make acetyl CoA molecules. This will require "turns" of the beta-oxidation process. Since each turn of the cycle yields ATP molecules, and each acetyl COA will yield ATP molecules by going through the rest of its metabolism, the net ATP molecules produced from one molecule of this fatty acid will be
● 1.) Draw out the pathway for the biosynthesis of the following glycerophospholipid starting with choline, glycerol and the component fatty acids as it occurs in the liver tissue. Show the structures of all reactants and products, as well as the names of the enzymes. You do not need to draw the structures of ATP, NAD+, CoA, etc., but do show them as reactants or products in the appropriate places. You do not need to show the mechanisms of the enzymes. What is the name of the phospholipid? Us jure O • DISM 91 3.C6H3 UG OSEMSA QE F CH₂ CABJAD C-H H H₂C-O-P-0- ACELOj Pro ! H₂ C 212 32 CH3 f H3C -N-CH3
In 1937, two German biochemists published a paper proposing these reactions as part of glucose oxidation: citrate → isocitrate → α-ketoglutarate →succinate → fumarate → malate → oxaloacetate. Adding succinate, fumarate, or malate to thin slices of tissue increased oxygen consumption, supporting the hypothesis that these molecules are intermediates in the process. However, they were puzzled by the observation that these intermediates were still present in the reaction mixture at the end of the experiment. They had thought that intermediates would be consumed as they were converted to the next molecule in the pathway. What explains the observation that these intermediates were still present? a) The pathway is a cycle, constantly regenerating intermediates as glucose is broken down. b) Succinate, fumarate, and malate are not reactants but catalysts, and catalysts are not consumed in the process. c) Succinate, fumarate, and malate increase metabolism and therefore oxygen consumption,…
Fatty acid biosynthesis occurs through a series of reactions involving fatty acid synthase (FAS), a polypeptide multienzyme complex. The result of this synthesis is a saturated fatty acid with up to 16 carbon atoms (palmitic acid). Longer fatty acids and unsaturated fatty acids result from modifications to fatty acids produced by FAS activity. What saturated fatty acid gives rise to myristoleic acid, CH3(CH2)3CH=CH(CH2),COOH? H₂ H₂ OH པཱལིནཊྛདྡྷིསཏྟཔཱཎཱསིངྒཱརཨིནྡྷནཾ ཀིཾསུ fatty acid + O2 + NADPH + H+ H3C H H myristoleic acid + 2 H2O + NADP+ Modufy the given molecule of myristoleic acid to show the fatty acid used to produce myristoleic acid. H₁C || Н H OH
The citric acid cycle is shown. The methyl carbon in acetyl CoA is labeled with C14C14 (shown in red). Identify which of the carbons in each intermediate will be labeled in the first round of the cycle by selecting the indicated carbon(s). Each question has multiple options, answering with only one option is incorrect. Which carbon(s) in α‑ketoglutarate will contain C14? 1 2 3 4 5 Which carbon(s) in succinyl‑CoA will contain C14? 1 2 3 4 Which carbon(s) in succinate will contain C14? 1 2 3 4 Which carbon(s) in fumarate will contain C14? 1 2 3 4 Which carbon(s) in malate will contain C14? 1 2 3 4 Which carbon(s) in oxaloacetate will contain C14? 1 2 3 4
Activation of the fatty acid (converting it to fatty acyl-SCoA) requires the expenditure of 2 ATPs. Use your answers from parts B and C to calculate the total number of ATPs generated from the metabolism of a saturated fatty acid with 18 carbon atoms including both the citric acid cycle and the ββbeta-oxidation pathway as well as the initial ATP required to produce the acyl-SCoA molecule that starts the process. Express your answer as an integer.

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