Under anaerobic conditions, pyruvate will be converted to lactic acid. Why does this occur?To convert NADH to NAD* to feed back into glycolysisTo supply the glycolysis reaction glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate with needed electrons in the form of NADHBecause lactic acid can be converted to glucose to feed back into glycolysisBecause lactic acid is needed to resupply glycolysis with electronsO

Anaerobic Glycolysis is the catabolic process during which Glucose is broken down into lactic acid…

Answered: Under anaerobic conditions, pyruvate…

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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Organisms growing anaerobically cannot perform glycolysis for long without reducing the pyruvate from glycolysis into another compound, most commonly to lactate or to ethanol plus CO2. Which of the following provides the best explanation for sustaining anaerobic glycolysis? O Lactic acid has to be reduced to regenerate NADH Pyruvate has to be reduced to regenerate NADH Pyruvate has to be reduced to regenerate NAD+ Lactic acid has to be reduced to regenerate NAD+
Glucose is converted to pyruvate in glycolysis, yielding a netsynthesis of 2 ATP. In certain cells pyruvate can be reconverted to glucose during gluconeogenesis. How many ATPsare required to convert pyruvate back to glucose?
Consider the following reaction of the glycolysis pathway. Which statement is NOT true regarding this reaction? P + C-H NADH + H+ NAD+ C-0-P H-C-OH H-C-OH Glyceraldehyde- CH₂0-P 3-phosphate dehydrogenase CH₂0-P 1,3-Bisphosphoglycerate Glyceraldehyde-3- phosphate O A one-carbon compound (1C) is converted into a two-carbon compound (2C). O It requires a coenzyme. O It is a redox reaction catalyzed by the enzyme glyceraldehyde-3-phosphate dehydrogenase. O It is a phosphorylation reaction.
In order for an adipose cell to synthesize decanoic acid, it will need substrates in the form of _______ ATP, _______ NADPH from the transport of citrate into the cytoplasm and the subsequent recycling of oxaloacetate, and _______ NADPH from the pentose phosphate pathway. You can ignore the ATP used to regenerate mitochondria oxaloacetate via pyruvate carboxylase.
What is the process that sustains the redox balance of glycolysis under aerobic conditions? transport of lactate from the cell regeneration of NAD* in the citric acid cycle formation of NADH in the reaction of glyceraldehyde 3-phosphate dehydrogenase regeneration of NAD* in fermentation processes regeneration of NAD* in the mitochondrial electron-transport chain
Pyruvate + NAD+ + CoA → Acetyl COA NAIDHI + H + CO₂ This is the overall reaction for the pathway of Glycolysis Oxidative decarboxylation of pyruvate Fatty acid oxidation Ellectron transport Oxidative phosphorylation TCA or citric acid cycle
Arsenate can replace inorganic phosphate in the reaction catalyzed by glyceraldehyde-3-phosphate dehydrogenase, causing glyceraldehyde-3-phosphate to be directly converted to 3-phosphoglycerate(NADH is still formed). Which of the following is absolutely true in case of arsenate poisoning -Glycolysis will stop - Glycolysis will still proceed with no net ATP gain - Glycolysis will not generate any form of energy - Glycolysis will still proceed, but with a net consumption of ATP - Glycolysis will proceed with lactate as end product
Draw 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) Glucose
The term "glucose" refers to hexoses and their sources in general. As much as one third of the glucose respired by plants does not enter glycolysis directly. Rather, the glucose goes through the oxidative pentose phosphate pathway (phosphogluconate shunt) first. What are the advantages and disadvantages of sending glucose through the oxidative pentose phosphate pathway?
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 Dehydratase
How many ATP or NADH molecules are produced or required in each of the following steps in glycolysis? Match the words in the left column to the appropriate blanks in the sentences on the right. zero one two produced required In the conversion of fructose-6-phosphate to fructose-1,6-bisphosphate, NADH molecules are In the conversion of 1,3-bisphosphoglycerate to 3-phosphoglycerate, NADH molecules are In the conversion of phosphoenolpyruvate to pyruvate molecules are ATP and Reset ATP and ATP and Help NADH
During glycolysis, glucose is converted to pyruvate. Pyruvate then is converted to Acetyl coA and enters the citric acid cycle. Per one (1) glucose molecule that undergoes glycolysis and TCA cycle, complete the table below ATPS produced Products from glycolysis 1. ATP 2. NADH 3. _Pyruvate Equivalence in ATP ATP ATPS АТР Equivalence in ATP ATPS Products from TCA ATPS produced АТР 4. NADH 5. FADH2 6. GTP ATPS ATP ATPS ATP TOTAL ATP Produced 7. ATP

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