Pearson eText Human Physiology: An Integrated Approach -- Instant Access (Pearson+)
8th Edition
ISBN: 9780135212905
Author: Dee Silverthorn
Publisher: PEARSON+
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Chapter 25, Problem 2RQ
Summary Introduction
Introduction: The energy producing units in various reactions is known as ATP. The breakdown of ATP molecule releases ADP and a phosphate molecule. It is also known as the molecular currency of energy.
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During anaerobic conditions, lactate travels from the muscle to the liver via the
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Glucagon
Citrate
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Glucose
Which of the following correctly describes ATP usage in gluconeogenesis
and glycolysis?
O ATP is consumed by gluconeogenesis and produced by glycolysis.
O ATP is consumed by both gluconeogenesis and glycolysis.
O ATP is produced by gluconeogenesis and consumed by glycolysis.
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Which of the following regarding the ATP Synthase is INCORRECT?
Protons flow through the a and c subunits
The translocation of four protons through the ATP synthase fuels the synthesis
of one ATP molecule
The F1 domain can function as an ATPase
The y subunit rotates while the xß dimers are stationary
Chapter 25 Solutions
Pearson eText Human Physiology: An Integrated Approach -- Instant Access (Pearson+)
Ch. 25.2 - If venous PO2 decreases as exercise intensity...Ch. 25.3 - In Figure 25.8b, why does the line for mean blood...Ch. 25.5 - The active vasodilator nerves to the skin secrete...Ch. 25 - Name the two muscle compounds that store energy in...Ch. 25 - Prob. 2RQCh. 25 - Prob. 3RQCh. 25 - Prob. 4RQCh. 25 - Prob. 5RQCh. 25 - What is meant by the term oxygen deficit, and how...Ch. 25 - Prob. 7RQ
Ch. 25 - In endurance events, body temperature can reach...Ch. 25 - Prob. 9RQCh. 25 - Prob. 10RQCh. 25 - Prob. 11RQCh. 25 - Prob. 12RQCh. 25 - Match the following brain areas with the...Ch. 25 - Specify whether each of the following parameters...Ch. 25 - Why doesnt increased venous return during exercise...Ch. 25 - Diagram the three theories that explain why the...Ch. 25 - Prob. 17RQCh. 25 - Explain how exercise decreases blood glucose in...Ch. 25 - Prob. 19RQCh. 25 - Prob. 20RQCh. 25 - The following graph shows left ventricular...
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- Describe in general terms what happens to a molecule of glucose during aerobic respirationarrow_forwardIn which phase of aerobic respiration is the main part of ATP formed? Electron transport chain Krebs cycle Conversion of pyruvate into acetyl CoA Glycolysisarrow_forwardb) Place a 'Yes' or a 'No' in the appropriate boxes that correspond to each listed feature of cellular respiration. You may need to state 'Yes' or 'No' in more than one box in a particular row in some cases. Cellular Respiration Feature Involved in aerobic respiration Occurs in the mitochondrial matrix Pyruvate molecules are produced Acetyl COA combines with a 4 carbon molecule Electrons are passed between protein carriers ATP is produced NAD+ gains hydrogen FADH₂ loses hydrogen Glycolysis Yes / No Krebs Cycle Yes / No Electron Transport chain Yes / Noarrow_forward
- Is the statement true or false?arrow_forwardThe complete aerobic catabolism of one molecule of glycerol from the break-down of fats would result in the production of NADH ATP equivalents via substrate phosphorylation.arrow_forwardLactate dehydrogenase (LDH) plays an essential role in an exercising muscle, especially when the level of excursion surpasses the ability of circulatory systems ability to supply adequate oxygen. What is the main reason LDH is so important to the muscle under these conditions? It produces one mole of ATP via substrate level phosphorylation. It resupplies NAD+ to glyceraldehyde 3-phosphate dehydrogenase. It decreases pH thus decreasing the dissociation rate of oxygen from hemoglobin It produces NADH for energy while converting pyruvate into lactate. It removes excess lactic acid from the muscle to create pyruvate. Nextarrow_forward
- place the following mechanisms to generate ATP in order from least to most generated per glucose molecule: aerobic respiration anaerobic respiration fermentationarrow_forwardIn hepatocytes, the enzyme glucokinase catalyzes the ATP-coupled phosphorylation of glucose. Glucokinase binds both ATP and glucose, forming a glucose-ATP-enzyme complex. The enzyme then transfers the phosphoryl group directly from ATP to glucose. Select the advantages of phosphoryl group transfer compared to hydrolysis and subsequent phosphorylation? Glucokinase increases the transition state energy, favoring glucose phosphorylation. Reaction intermediates do not need to be present in excess. The process takes advantage of the high phosphoryl group transfer potential of ATP. ATP hydrolysis is thermodynamically unfavorable compared to group transfer.arrow_forwardIn the absence of a proton gradient, ATP synthase rotates in reverse. Based upon your knowledge of the binding/exchange model, this would result in: Release of ADP + Pi by one subunit, stabilization of ADP + Pi by the second subunit and binding of ATP by the third subunit. Release of ATP by one subunit, stabilization of ATP by the second subunit and binding of ADP + Pi by a third subunit. Release of ATP by one subunit, release of ADP + Pi by the second subunit and binding of ATP by the third subunit. Binding of ATP to all three subunits. Release of ATP, ADP and Pi from all subunitsarrow_forward
- Which of the following is true about aerobic and anaerobic metabolism? the citric acid cycle happens faster in aerobic metabolism than it does in anaerobic metabolism oxidative phosphorylation in anaerobic metabolism requires more steps than aerobic metabolism glycolysis is the first step of both aerobic and anaerobic metabolism electron transport chain produces more CO2 in anaerobic metabolism than it does in aerobic metabolism chemiosmosis occurs more frequently in anaerobic metabolism than it does in aerobic metabolismarrow_forwardb) Place a 'Yes' or a 'No' in the appropriate boxes that correspond to each listed feature of cellular respiration. You may need to state 'Yes' or 'No' in more than one box in a particular row in some cases. Cellular Respiration Feature Involved in aerobic respiration Occurs in the mitochondrial matrix Pyruvate molecules are produced Acetyl CoA combines with a 4 carbon molecule Electrons are passed between protein carriers ATP is produced NAD* gains hydrogen FADH₂ loses hydrogen Glycolysis Yes / No Krebs Cycle Yes / No Electron Transport chain Yes/No 90+arrow_forwardPlace the following molecules in the order in which they appear during aerobic respiration: Citrate G3P Glucose-6-phosphate Pyruvate Fructose-1,6-bisphosphate 1,3-bisphosphoglycerate 3-phosphoglycerate Glucose Acetyl-CoAarrow_forward
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Anaerobic Respiration; Author: Bozeman Science;https://www.youtube.com/watch?v=cDC29iBxb3w;License: Standard YouTube License, CC-BY