35. How is ATP produced in glycolysis? Group of answer choices the production of glyceraldehyde 3-phosphate the reduction of NAD+ to NADH substrate-level phosphorylation phosphorylating organic molecules in the priming reactions
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35. How is ATP produced in glycolysis?
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- Comparing Glycolysis Entry Points for Sucrose Sucrose can enter glycolysis by either of two routes: Sucrose phosphorylase: Sucrose + Pi fructose + glucose-1-phosphate Invertase: Sucrose + H20 fructose + glucose Would either of these reactions offer Jin advantage over the other In the preparation of hexoses fur entry into glycolysis?How Do Vitamin-Derived Coenzymes Aid Metabolism? What chemical functionality is provided to enzyme reactions by pyridoxal phosphate (we Chapter 13)? By coenzyme A (see Chapter I9)? By vitamin B12 (see Chapter 23)? By thiamine pyrophosphate (see Chapter 19)?The control of which enzyme exerts the most control on glycolysis? hexokinase phosphofructokinase glucose-6-phosphatase aldolase
- The glyceraldehyde-3-phosphate dehydrogenase reaction of glycolysis, (glyceraldehyde-3- phosphate → 1,3 bisphosphoglycerate) (Choose all that apply) O conserves energy by transfer of a proton H* to NAD+ forming NADH O has a high energy thioester intermediate on the enzyme/substrate complex O mechanistically uses covalent catalysis O conserves energy in the formation of a oxygen phosphoric ester O conserves energy in the formation of a carboxylic-phosphoric mixed anhydride O mechanistically requires the coenzyme thiamine pyrophosphate (TPP) to act as an electron sinkA figure of the energy payoff phase of glycolysis is shown below. Look at the reaction labelled with a 6 (on the far left), which involves the conversion of glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate. reduced? HC O CHOH CH₂O-P Glycer- aldehyde 3-phosphate (G3P) 2 NADH 2 NAD+ + 2 H+ Triose phosphate 2 P₁ dehydrogenase Copyright © 2018 Pearson Canada Inc. P CHOH CH₂0-P 1,3-Bisphospho- glycerate 1,3- bisphosphoglycerate NADH NAD+ 2 ADP GLYCOLYSIS: Energy Payoff Phase Glyceraldehyde-3-phosphate 2 ATP Phospho- glycerokinase 2 Which of the compounds is C=O CHOH H–CO- P Phospho- CH₂0-P glyceromutase CH₂OH 8 3-Phospho- glycerate C=O 2-Phospho- glycerate 2. ATP 2 ADP BYD Pyruvate kinase 10 2 H₂O Enolase 2 C=O CO-P CH2 Phosphoenol- pyruvate (PEP) CH3 PyruvateC000 C000 NADH NAD -NADH NAD* oco, NAD Oco,- FADH NADH FAD ATP ADP+,P Select the conclusion that would most accurately explain the impact on the Krebs Cycle if glycolysi were to slow down its rate of reaction. ATP production would increase since glycolysis would be using less ATP. The Krebs cycle production of FADH2 would increase. O The Krebs cycle would continue to function at a normal rate. O The Krebs cycle production of NADH would decrease.
- 1. Identify the oxidized coenzyme (letter abbreviation only) that participates in this reaction of the Kreb’s cycle. Succinate --> Fumarate 2. How many mol of NADH can be obtained upon the beta oxidation of stearic acid? 3. How many mol of ATP can be obtained upon the complete oxidation of 1 mol stearic acid? 4. How many steps in glycolysis in which ATO is converted to ADP?ATP NAD+ FADH2 Coenzyme A ATP synthase oxidizing agent in metabolism enzyme "motor" located on the inner membrane of mitochondrial works with CoQ10 in oxidative phosphorylation shuttles electrons in the e- transport chain provides energy to drive an endergonic reaction forward shuttles two-carbon units (acetyl groups) reducing agent in metabolism turns pyruvate to lactate in anaerobic conditionsMatch group A with group B: Group A Group B ATP synthase that makes ATP, is a Pyruvate part of Transfers the electrons from cyt c to O2 NADH Both glycogen synthesis and glycogen +NAD breakdown share the metabolite Glucose converted into two of these ТСА суcle molecules a-ketoglutarate dehydrogenase ETC inhibited by The central catabolic pathway is Ubiquinone Cytochrome c oxidase Glucose-1- phosphate
- The enzyme is considered to be alan * ÇOO ÇOO Lactate dehydrogenase HO-C-H+ NAD C=0 + NADH + H CH: Pyruvate Lactate O Oxydoreductase O Isomerase O Hydrolase O Ligase O DehydrataseDraw OUT THE arrow pushing reaction mechanism for the following steps of glycolysis: SHOW/IDENTIFY the arrow pushing mechanism in at least 2 steps. CH,OPO CH,OH hexokinase 2+ H H H H H H ОН + ATP OH H ADP + H+ H ОН + НО HO OH H ОН H ОН Glucose-6-phosphate (G6P) GlucoseIndicate at what step in the glycolysis pathway each of the following events occur 1. First phosphorylation of ADP occurs 2. First “energy rich” compound is produced 3. Second “energy rich” compound undergoes reaction 4. First isomerization reaction occurs 5. Second formation of ATP occurs 6. Second “energy rich” compound is produced 7. ATP is converted to ADP for the second time 8. A dehydration reaction occurs
