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 17RQ
The control of which enzyme exerts the most control on glycolysis?
- hexokinase
- phosphofructokinase
- glucose-6-phosphatase
- aldolase
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All of the following are true statements concerning glycolysis EXCEPT:
It occurs in the cytoplasm of the cell.
It uses, as well as produces, ATP
It produces ATP by oxidative phosphorylation.
It involves the conversion of a molecule of glucose into two molecules of pyruvic acid.
It is also called the Embden-Meyerhof pathway.
Question 20
Several of the enzymes of glycolysis fall into classes that we will see often in metabolism. What reaction types are catalyzed by each of the following:
Kinases
Isomerases
Aldolases
Dehydrogenases
Which reaction in glycolysis produces ATP as a product?
Group of answer choices
hexokinase
glyceraldehyde-3-phosphate dehydrogenase
pyruvate kinase
aldolase
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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- Which of the following enzyme catalyzes the first step of glycolysis? Group of answer choices Hexokinase Pyruvate kinase Glucokinase Phosphofructokinasearrow_forwardA high NADH/NAD+ ratio will inhibit which pathways or enzymes by LeChatelier’s principle: Options: PDC Glycolysis Gluconeogenesis b-oxidation isocitrate dehydrogenase malate dehydrogenasearrow_forwardDuring glycolysis, the major energy generating step involves: pyruvate kinase phosphoglycerate kinase Phosphofructokinase glyceraldehyde-3 -dehydrogenasearrow_forward
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- Identify the stage of catabolism where the following processes occur: a. Hydrolysis of triacylglycerol with lipaseb. Oxidation of fatty acid to acetyl CoAc. Conversion of ADP to ATP with ATP synthased. Reaction of oxygen with protons and electrons to form watere. Cleavage of a protein with chymotrypsinarrow_forwardSort the following metabolic enzymes according to those involved only in glycolysis and those involved only in gluconeogenesis. (Note: Some of the enzymes may not be used.) Items (10 items) (Drag and drop into the appropriate area below) Fructose-1,6- bisphosphatase- 1 Categories Phosphoglycerat e kinase Aldolase Glycolysis Only Pyruvate kinase Enolase Gluconeogenesis Only Phosphofructoki nase-1 Phosphoenol uvate carboxykinasarrow_forwardRegarding pathways that feed glycolysis, which of the following statements is false? Mannose is also a substrate of hexokinase. Galactose requires UDP-glucose in its conversion to fructose-6-phosphate. Fructose is phosphorylated by hexokinase in muscle cells. Glucose-6-phosphatase is part of the pathway that breaks down glycogen in muscle cells.arrow_forward
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