What is the role of the prep phase in glycolysis?To convert G3P molecules into pyruvate and produce ATP and NADHTo destabilize and break apart the glucose molecule to make ATPOTo use energy from ATP to destabilize and break apart the glucose moleculeOTo convert glucose into 2 pyruvate molecules by consuming 2 ATP How is NAD+ replenished (ie. replaced) after be used during glycolysis to makeNADH?By converting NADH to NAD+ at the electron transport chainBy converting NADH to NAD+ in the citric acid cycleBy converting NADH to NAD+ in pyruvate oxidationBy converting NADH to NAD+ in the Kreb's cycle

In glycolysis, the glucose molecules are broken down into two molecules of pyruvate along with the…

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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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The first half of glycolysis is called investment phase or preparatory phase because a ATP is released to form a nearly symmetrical molecule. b ATP is released to trap glucose in the cell. c ATP is consumed to form G3P at the end of this phase d ATP is consumed to generate NADH at the end of this phase
How many ATP molecules must be used to break down 2 glucose molecules in the energy consuming phase of glycolysis?
A cell is grown on minimal media containing only malic acid as a source of carbon and energy. What is the most likely place this compound would enter the metabolic cycle? Glycolysis Conversion of Pyruvate to Acetyl-CoA The TCA Cycle The Electron Transport Chain
How is the malate shuttle used in the liver to increase the number of ATP generated from glycolysis? Contrast this with how NADH from glycolysis is dealt with in the muscle.
In glycolysis, identify the enzyme and type of reaction (REDOX/group transfer/C-C make it or break it/isomerization/etc) that: -requires energy input form ATP (name one) -reduce NAD+ -are essentially irreversible in the cell (name 2) -is the committed step
What is the amount of ATP yield per one glucose molecule? Is this amount always achieved? If not explain what happens to a cell’s essential metabolites when the requirement for biosynthesis is greater than the cells energy requirement? When the biosynthesis requirement is less than its energy requirement?
Muscle tissues make lactate from pyruvate in order to do which of the following? Speed up the rate of glycolysis Get rid of pyruvate produced by glycolysis Regenerate nad+ Utilize the energy in pyruvate Produce additional co2
Which of the following statements best describes the products of a single molecule of Glucose, processed by Glycolysis Glycolysis produces two molecules of ATP, two molecules of NADH, and two molecules of Acetyl-CoA, per Glucose. Glycolysis produces two molecules of ATP, two molecules of NADH, and two molecules of Lactic Acid, per Glucose. Glycolysis consumes two molecules of ATP, and produces four molecules of ATP, two molecules of NADH, and two molecules of Pyruvic Acid, per Glucose. Glycolysis consumes two molecules of ATP, and produces four molecules of ATP, two molecules of NADH, and two molecules of Acetyl-CoA, per Glucose.
List the following steps of cellular respiration in order - glycolysis-energy investment phase -pyruvate enters mitochondria -TCA cycle -glycoysis-energy payoff phase -formation of acetly-CoA -electron transport chain
The complete catabolism of glucose into CO2 and H2O generally yields a smaller amount of ATP in aerobic eukaryotes than in aerobic prokaryotes because the aerobic eukaryotes: generate more molecules of FADH2 during aerobic respiration have transport costs to get NADH into the mitochondrion generate more molecules of NADH during aerobic respiration are able to use pyruvate as a substrate for fermentation always produce ethanol rather than lactic acid as a byproduct
Which of the following best describes the net transfer of energy that occurs during the process of cellular respiration? solar energy from the sun is converted into chemical energy that is stored in the bonds of glucose molecules chemical energy that is stored in the bonds of glucose molecules is converted to energy stored in ATP molecules energy stored in the bonds of ATP molecules is released by breaking off the bond with the last phosphate group during cellular respiration Thermal energy from making smores is converted into chemical energy in the bonds of glucose molecules
A cell is grown on minimal media containing only 3-phosphoglyceric acid as a source of carbon and energy. What is the most likely place this compound would enter the metabolic cycle? O Glycolysis O Conversion of Pyruvate to Acetyl-CoA O The TCA Cycle The Electron Transport Chain

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