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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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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- 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)?arrow_forwardWhat 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.arrow_forwardWhich of the following is not a net product (i.e. of both phases) of the pentose phosphate shunt? a NADH b CO2 c Ribose-5-P d NADPHarrow_forward
- Which of the following enzymes consumes one molecule of NADH, during anaerobic fermentation in yeast, as it converts a two-carbon substrate molecule into a two-carbon product molecule? succinate dehydrogenase pyruvate decarboxylase C. isocitrate dehydrogenase lactate dehydrogenase alcohol dehydrogenasearrow_forwardWhich of the following is produced during glycolysis? pyruvate lactic acid acetyl-CoA NAD+arrow_forwardWhich of the following enzymes consumes one molecule of NADH, during anaerobic fermentation in humans, as it converts a three-carbon substrate molecule into a three-carbon product molecule? succinate dehydrogenase pyruvate decarboxylase C. isocitrate dehydrogenase lactate dehydrogenase alcohol dehydrogenasearrow_forward
- Which of the following foods NOT produced through fermentation? Yogurt Pea soup Sauerkraut Chocolate Which of the following happens during the electron transport chain? Protons are pumped across the membrane O Glucose is converted to Pyruvate CO2 is released Acid builds up Which of the following is NOT an electron acceptor in anaerobic respiration? NO3 (nitrate) 02 Iron SO4 (sulfate)arrow_forwardWhat is pyruvate converted into for the two fermentation types? lactate (lactic acid) and ethyl alcohol (ethanol) glucose and citric acid lactate and glucose ethanol and glucosearrow_forwardWhat is the role of the prep phase in glycolysis? To convert G3P molecules into pyruvate and produce ATP and NADH To destabilize and break apart the glucose molecule to make ATP OTo use energy from ATP to destabilize and break apart the glucose molecule OTo convert glucose into 2 pyruvate molecules by consuming 2 ATParrow_forward
- Which of the following is not a catabolic fate for pyruvate formed in glycolysis? fermentation to ethanol substrate for glycogen synthesis fermentatiom to lactate substrate for citric acid cyclearrow_forwardThe synthesis of acetyl-CoA from pyruvic acid serves as a bridge between which of the following pathways? glycolysis and the Krebs cycle the Entner-Douderoff pathway and the Krebs cycle CO glycolysis and fermentation glycolysis and the electron transport chain Krebs cycle and the electron transport chain uestion 21 the carbon dioxide produced during aerobic respiration is produced in the Krebs cyclearrow_forwardWhich of the following is NOT produced during the oxidative phase of the pentose phosphate shunt? a Ribulose-5-Phosphate b Glyceraldehyde-3-phosphate c CO2 d NADPHarrow_forward
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