BIOLOGY
5th Edition
ISBN: 9781265202859
Author: BROOKER
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 7, Problem 10TY
Summary Introduction
Introduction: Under normal conditions, pyruvate undergoes further oxidation for yielding energy, but when the conditions in muscles become anaerobic due to a lot of strenuous activity, oxidation of pyruvate does not occur. Instead, pyruvate is converted to lactate by lactate dehydrogenase enzyme.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
What might you expect if a mutation caused the ATP-allosteric site on phosphofructokinase to be permanently inactive?
a.
Less glucose transported into the cell.
b.
No effect on ATP production.
c.
Decreased ATP production
d.
Excessive ATP production.
The synthesis and degradation of glycogen in muscle is not a futile (ATP-hydrolyzing)cycle because:A. glycogen synthase and phosphorylase are simultaneously activatedB. cyclic AMP activates adenylate kinase.
C. when glycogen synthase is inactivated, phosphorylase is simultaneously activated.
D. glycogen binds Mg2+, thereby lowering the concentration of MgATP2-
Mark the following statements as true or false. If a statement is false, correct it to make a true statement. a. Stored ATP and creatine phosphate are immediate energy sources for muscle fibers. b. Glycolytic catabolism occurs in the mitochondria and requires oxygen. c. Glycolytic catabolism provides enough ATP to fuel from several minutes to a few hours of activity. d. Oxidative catabolism may oxidize the products of glycolysis, fatty acids, and amino acids
Chapter 7 Solutions
BIOLOGY
Ch. 7.2 - Core Skill: Connections Look ahead to Table 45.1....Ch. 7.2 - Which organic molecules donate a phosphate group...Ch. 7.2 - Prob. 2CSCh. 7.4 - Prob. 1CCCh. 7.5 - Explain the meaning of the name cytochrome...Ch. 7.6 - Prob. 1CCCh. 7.6 - Prob. 1CSCh. 7.6 - Prob. 1EQCh. 7.6 - CoreSKILL In the experiment of Figure 7.13, what...Ch. 7.6 - Prob. 3EQ
Ch. 7.7 - Prob. 1CCCh. 7 - Which of the following pathways occurs in the...Ch. 7 - Prob. 2TYCh. 7 - Prob. 3TYCh. 7 - Which organic molecule supplies a two-carbon group...Ch. 7 - The ability to diagnose tumors using...Ch. 7 - Prob. 6TYCh. 7 - Certain drugs, which are called ionophores, cause...Ch. 7 - Prob. 8TYCh. 7 - Prob. 9TYCh. 7 - Prob. 10TYCh. 7 - Prob. 1CQCh. 7 - What causes the rotation of the subunit of ATP...Ch. 7 - Core Concept: Energy and Matter How is glucose...Ch. 7 - Discuss the advantages and disadvantages of...Ch. 7 - Prob. 2COQ
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- During strenuous exercise, the NADH formed in the glyceraldehyde 3-phosphate dehydrogenase reaction in skeletal muscle must be reoxidized to NAD+ if glycolysis is to continue. The most important reaction involved in the reoxidation of NADH is: a. dihydroxyacetone phosphate → glycerol 3-phosphate b. glucose 6-phosphate → fructose 6-phosphate c. isocitrate → α-ketoglutarate d. oxaloacetate → malate e. pyruvate → lactatearrow_forwardFast-twitch muscle fibers have fewer mitochondria and less myoglobin to store oxygen than slow-twitch muscle fibers. Use this information to predict how energy production differs in these two types of muscle fibers. Fast-twitch fibers rely primarily on aerobic respiration whereas slow- twitch fibers rely on anaerobic respiration. Slow-twitch fibers are able to produce more ATP per glucose molecule than fast-twitch fibers. You would expect to find more lactic acid build-up in slow-twitch fibers rather than fast-twitch fibers. A & C all of the abovearrow_forwardWhich of the following statements is (are) accurate about aerobic and anaerobic respiration?a. Aerobic respiration is best for sprints.b. Anaerobic respiration is best for long distances because it does not need large amounts of oxygen.c. Aerobic respiration is faster.d. Aerobic respiration produces more energy per glucose molecule.e. Both aerobic respiration and anaerobic respiration start with glycolysis.arrow_forward
- ATP for muscle contraction can be provided by ______. a. aerobic respiration b. lactate fermentation c. transfer of a phosphate from creatine phosphate d. all of the abovearrow_forwardWhat would you predict to be the consequence of several minutes of hypoxia (low oxygen availability) on carbohydrate metabolism via oxidative phosphorylation? Select one: a. Decreased ATP synthesis b. Elimination of ATP synthesis c. Increased ATP synthesis d. No change in ATP synthesisarrow_forwardDuring cellular respiration, 60 molecules of CO2 were given off as waste. a. How many pyruvate molecules were produced in glycolysis? b. The total amount of ATP produced by complete cellular respiration would be? c. The amount of energy available (Net ATP) to cell as ATP would be?arrow_forward
- What effect is observed on the rate of glycolysis under each of the following conditions? a. low ATP concentrationc. high carbohydrate diet b. low ADP concentrationd. low carbohydrate dietarrow_forwardWhat would most likely promote increased rates of glycolysis? Select one: a. a higher concentration of Na in the environment compared to cells b. a higher concentration of K in cells compared to the environment c. a high concentration of ATP in cells d. a low concentration of ATP in cells e. presence of oxygen in cellsarrow_forwardIdentify the conversion which is not involved in glycolysis. a.Glucose to glucose 6-phosphate by hexokinase b.Triose phosphate to 2-phosphoglycerate by phosphoglyceromutase c.PEP to pyruvic acid by pyruvate kinase d.Sucrose to glucose and fructose by invertasearrow_forward
- Which of the following statements concerning the enzyme regulation is CORRECT? Select one: A. Citrate is the allosteric inhibitor of hexokinase. B. AMP is the alloseric activator of pyruvate dehydrogenase. C. Glucose-6-phosphate is the allosteric activator for phosphofructokinase. D. ATP is the activator of pyruvate kinase.arrow_forwardWhat do you think would be the effect on oxidative phosphorylation of the following mutations of F1 or F0 ATPase subunits? Be as specific as possible. A. Subunit c Asp61 to Leu B. Subunit c Asp61 to Asn C. Subunit a Asn214 to Asp D. Subunit a Ser206 to Alaarrow_forwardIdentify in which reactions in glycolysis the followingfunctions occur.a. ATP consumptionb. ATP synthesisc. NADH synthesisarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Mitochondrial mutations; Author: Useful Genetics;https://www.youtube.com/watch?v=GvgXe-3RJeU;License: CC-BY