Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 7, Problem 8RQ
What do the electrons added to NAD+ do?
- They become part of a fermentation pathway
- They go to another pathway for ATP production
- They energize the entry of the acetyl group into the citric acid cycle
- They are converted to NADP.
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Students have asked these similar questions
What happens to NADH and FADH2 made during glycolysis, acetyl-CoA formation, and the citric acid cycle?
They do not serve any purpose in the cell.
They drop electrons into the electron transport chain.
They are used to drive the reactions of glycolysis.
They are used to directly make proteins.
What happens to cells that use up their available oxygen?
they will no longer be able to perform anaerobic respiration.
high levels of fermentation products will build up.
they will no longer be able to produce adequate amounts of ATP.
they will no longer be able to absorb water and will become dehydrated.
Acetyl CoA will accumulate
An important reaction that must occur in both fermentation and aerobic cellular respiration is
A) the reduction of NADH to NAD+.
B) the reduction of FAD+ to FADH2.
C) the oxidation of NADH to NAD+.
Chapter 7 Solutions
Biology 2e
Ch. 7 - Figure 7.11 Dinitrophenol (DNP) is an "uncoupler"...Ch. 7 - Figure 7.12 Cyanide inhibits cytochrome c oxidase,...Ch. 7 - (Figure 7.14) Tremetol, a metabolic poison found...Ch. 7 - The energy currency used by cells is ATP ADP AMP...Ch. 7 - A reducing chemical reaction. reduces the compound...Ch. 7 - During the second half of glycolysis, what occurs?...Ch. 7 - What is removed from pyruvate during its...Ch. 7 - What do the electrons added to NAD+ do? They...Ch. 7 - GTP or ATP is produced during the conversion of...Ch. 7 - How many NADU molecules are produced on each turn...
Ch. 7 - What compound receives elections from NADH? FMN...Ch. 7 - Chemiosmosis involves. the movement of electrons...Ch. 7 - Which of the following fermentation methods can...Ch. 7 - A major connection for sugars in glycolysis is...Ch. 7 - Beta-oxidation is. the breakdown of sugars the...Ch. 7 - The effect of high levels of ADP is to__inv __...Ch. 7 - The control of which enzyme exerts the most...Ch. 7 - Why is it beneficial for cells to use ATP rather...Ch. 7 - Nearly all organisms on Earth carry out some form...Ch. 7 - Because they lose their mitochondria during...Ch. 7 - What is the primary difference between a circular...Ch. 7 - How do the roles of ubiquinone and cytochrome c...Ch. 7 - What accounts for the different number of ATP...Ch. 7 - What is the primary difference between...Ch. 7 - Would you describe metabolic pathways as...Ch. 7 - How does citrate from the citric acid cycle affect...Ch. 7 - Why might negative feedback mechanisms be more...
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- The glucose that enters the glycolysis pathway is split into two molecules of _____. a. ATP b. phosphate c. NADH d. pyruvatearrow_forwardWhich molecules can enter the Krebs cycle? chylomicrons acetyl CoA mono glycerides ketone bodiesarrow_forwardWhich of the following is produced during glycolysis? pyruvate lactic acid acetyl-CoA NAD+arrow_forward
- Which Molecule Is Being Reduced In The Reation Pyruvate (C3H4O3) + NADH+H+ -> Lactate (C3H6O3)+NAD+arrow_forwardThe high energy electrons that are stripped off acetyl CoA in _________are taken to the electron transport chain. As they move through the electron transport chain, these high energy electrons are pulled to lower and lower energy levels, finally combining with ________, chemiosmotic phosphorylation; oxygen the fermentation pathways; carbon dioxide ATP synthase; nitrogen the citric acid cycle; oxygenarrow_forwardWhich statement about NADH is true? It only functions in photosynthesis. It is a key electron carrier in redox reactions. It does not carry electrons. It binds with an acetyl group to form acetyl CoA. It is not involved in cellular respiration.arrow_forward
- Acetyl Coa is a ____ carbon molecule derived from pyruvate that is used during ______. Select one: a. 2, glycolysis b. 2, citric acid cycle c. 3, glycolysis d. 4, glycolysis e. 4, citric acid cyclearrow_forwardWhich of the following is NOT similar in lactic acid fermentation and alcoholic fermentation? a. Total number of net ATP b. Oxidizing agent of NADH c. Number of NAD+ regenerated d. Steps in glycolysis to produce pyruvatearrow_forwardThe oxidation of NADH to NAD+ requires transferring electrons from it onto something else. What are characteristics the ideal recipient would have? What is the recipient actually used? What does it turn into as electrons are added to it?arrow_forward
- What is the ultimate fate of the carbon atoms in a glucose molecule that goes through aerobic respiration? It is converted to glycogen. It is recycled in the citric acid cycle. It is turned into starch. It is converted to pyruvate. It is released as carbon dioxide.arrow_forwardWhat happens to the ATP made during glycolysis and the citric acid cycle? It is used to drive cellular reactions. It is used to drop off electrons into the electron transport chain. It is used to drive the formation of acetyl-CoA. It is not used by the cell.arrow_forwardWhich metabolic pathway requires ATP (as input)? glycolysis TCA cycle pyruvate oxidation the electron transport chainarrow_forward
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