a. The Kreb's Cycle can be divided into twoTransformation of pyruvate into acetyl Constages. In one stage, carbon atoms are addedCaroand removed. In the second stage,CO,Twooxaloacetate is regenerated. Considering what(interPyruvatothis means, what is the name of theintermediate molecule that begins Stage 2?The Krebs/citric acid cycleCH -0Explain why you think so.CO0AcetylCooNADH C.HO-CHCHNAD+OxaloeceCooMalateCHHCFumarateCo0FADHFAD succinateb. You learned relevant chemical reactionsbefore seeing them applied as biochemicalCHCHreaction strategies. Where in the Kreb's cycledo the following classes of reactions occur?iii. An acyl-group transfercycle. The first time wherThe "Hydration of an Alkene" is applied asCOA is replaced with OHdeprotonated to COO-).is convertedwhen the -SCOA comes cMolecule names go on the linesreplaced byactually see in the imagcomes from, it just appetoii.The "Oxidation of a secondary alcohol" iscarbons to keep track oapplied asisiv. What makes the conconverted toa carbon dioxide molethe two structures (RCyour answer.and again asis convertedto CO2Iragment(interinediary)to slactiontransportchainCHPyruvate-Krebs/citric acid cycleCOACOOCH C - SCH2HO C CO"CH2Acetyi CoACHCOOCH2HS-COAH0-CHNADHHCCH2NAD+OxaloacetateCitrateHO-CHIsocitrateNAD+MalateNADHCOH20-CHa-KetoglutarateCH2HCNAD+FumarateNADHCH2COOO2FADHFADSuceinyl CoASuccinateCOOGTPGDPCO"1.CH:PO.CH2CH2CH2GTP1.S COAGDPCOOADPATPiii. An acyl-group transfer can be seen twice in thecycle. The first time when -SCOA group on acetyl-COA is replaced with OH from water (which then is

Glucose is catabolized visa glycolysis into two molecules of pyruvate. The Pyruvate produced may…

a. The Kreb's Cycle can be divided into two stages. In one stage, carbon atoms are added and removed. In the second stage, oxaloacetate is regenerated. Considering what this means, what is the name of the intermediate molecule that begins Stage 2? Explain why you think so. b. You learned relevant chemical reactions before seeing them applied as biochemical reaction strategies. Where in the Kreb's cycle do the following classes of reactions occur? i. The "Hydration of an Alkene" is applied as is converted Molecule names go on the lines to ii. The "Oxidation of a secondary alcohol" is applied as is converted to and again as is converted to

a. The Kreb's Cycle can be divided into two stages. In one stage, carbon atoms are added and removed. In the second stage, oxaloacetate is regenerated. Considering what this means, what is the name of the intermediate molecule that begins Stage 2? Explain why you think so. b. You learned relevant chemical reactions before seeing them applied as biochemical reaction strategies. Where in the Kreb's cycle do the following classes of reactions occur? i. The "Hydration of an Alkene" is applied as is converted Molecule names go on the lines to ii. The "Oxidation of a secondary alcohol" is applied as is converted to and again as is converted to

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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Please answer this question and the highlighted question is wrong please explain why and give me the correct answer
For the three biochemical transformations below provide the names of the enzyme (or enzymes) responsible for the transformation, and identify by name or chemical structure the other necessary reactants and other products associated with each transformation. Make sure that your answer presents the missing information in a way that clearly connects it to the appropriate reaction.
A dichotomous key works by determining positive and negative reactions to different biochemicals. Why does this method allow us to identify one species of organism from another? – for this question, do not describe the dichotomous key procedure, think about why it works, what are biochemical reactions based on? Think enzymatic pathways, what are enzymes, what are they a reflection of? Keep the answer between 2-3 sentences
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Match each reaction description to the type of enzyme that catalyzes the reaction. 1. Oxidation and reduction of compounds 2. Transfers a functional group from one compound to another compound 3. Utilizes water to break bonds within a compound 4. Addition/removal of a group of atoms and bonds within a compound 5. Forms a bond between two compounds A. Ligase B. Transferase C. Hydrolase D. Oxidoreductase E. Isomerase F. Lyase
Balance the reactions. A hint is provided to help you decide if the reaction will proceed as written, ie from left to right. Do not leave any fractions. 1. a) Balance Al₂O3 → Al + 0₂ b) What type of reaction is this? c) Is this a redox rx, yes / no ? d) The reaction will go from left to right, yes / no ? (hint: O₂ is very reactive) 2. a) Balance HNO3 + AI → b) What type of reaction is this? c) Is this a redox rx, yes / no ? d) The reaction will go from left to right, yes / no ? (hint: aluminum is a reactive metal, and a gas escapes) C7H14 + 0₂ 3. a) Balance, leave no fractions b) What type of reaction is this? c) Is this a redox rx, yes / no ? d) The reaction will go from left to right, yes / no ? (hint: O₂ is very reactive) H2(g) + AI(NO3)3 → CO₂ + H₂O
Bypass reaction in the anabolic pathway often occurs when A The ΔG of the reverse reaction in the catabolic pathway has a large negative value B The ΔG of the reverse reaction in the catabolic pathway has a large positive value C The ΔG of the reaction in the anabolic pathway is close to zero D The ΔG of the reaction in the anabolic pathway is positive E None of the above
Consider the following free energy diagram for an uncatalyzed and enzyme-catalyzed reaction. Select all the statements that are true. Without enzyme With enzyme A+B Time AB Oa. The reaction is now spontaneous due to the addition of enzyme b. The rate of the enzyme catalyzed reaction is faster than the uncatalyzed reaction O C. The reaction is exergonic O d. The change in free energy for the reaction is greater in the catalyzed reaction, compared to the uncatalyzed reaction e. The enzyme stabilizes the transition state for the reaction Released Energy pes
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