Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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-
What effect will increasing the number of c subunits in ATP synthase have on the P:O ratio?
A. It will increase for both NADH and FADH2.
B. It will increase for NADH and decrease for FADH2.
C. It will decrease for NADH and increase for FADH2.
D. It will decrease for both NADH and FADH2.
E. It will remain unchanged for both NADH and FADH2.
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
- 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 acidsarrow_forwardWhy does anaerobic respiration occur during vigorious exercise?a. during anaerobic respiration, enzymes make more ATP than during aerobic exercise.b. Anaerobic respiration releases more energy from glucose tan aerobic respiration.c. There maybe insuffiecient oxyen supplied to the muscle cells.d. Carbon dioxide builds up in the respiring muscle cells.arrow_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_forward
- In muscle, glycogen phosphorylase is stimulated (activated) by a. Glucose b. AMP c. Glucose 6-phosphate d. ATParrow_forwardWhich of the two set ups shall generate higher amount of energy in terms of net ATP generated? Set up A. The one containing 1 mole of trimyristin being catabolized and completely oxidized. Set up B. The one containing combined fatty acids (1mole each) that comprise trymiristin.arrow_forwardSince in this patient pyruvate kinase is abnormal not only is less pyruvate made but intermediates above pyruvate in the glycolytic pathway build up slowing the pathway. which of the following would be expected? A.ADP to ATP ratios would be elevated above normal. B.NADP+ would increase relative to NADPH. C.Ribulose 5-phosphate levels would decrease. D.NADH to NAD+ ratios would decrease. E.Methemoglobin levels would increase. Explanation for answer in no. 6:arrow_forward
- Which 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_forwardMuscle soreness and fatigue in a racehorse after a long, strenuous race is a result of in the muscle. A. anaerobic metabolism, which leads to lactic acid buildup B. aerobic metabolism, which leads to buildup of carbon dioxide C. aerobic metabolism, which leads to lactic acid deficiency D. anaerobic metabolism, which leads to ATP builduparrow_forwardWhat are the effects of INCREASED concentration of citrate? Select one: a. Increases the inhibitory effect of ATP. b. Increases the activity of ATP. c. Increases the activity of AMP. d. Decreases the inhibitory effect of ATP.arrow_forward
- Which molecule below is readily converted to ATP in muscle? A. glycogen B. phospho-creatine C. cAMP D. fatty-acyl carnitine E. glutaminearrow_forwardYou are testing the effects of different molecules on respiration using isolated liver cells that are growing on glucose. For each of the compounds listed below, indicate whether the compound will increase or decrease respiration (measured by monitoring oxygen consumption), and provide reasoning for your answer in two sentences at most. Consider only the early time after the compound begins to exert its effects. a. An inhibitor of the FoF1 ATPase b. A proton channel that enables protons to cross the inner mitochondrial membrane by facilitated diffusion c. An inhibitor of NADH dehydrogenase (complex I of the electron transport chain)arrow_forwardATP 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_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Mitochondrial mutations; Author: Useful Genetics;https://www.youtube.com/watch?v=GvgXe-3RJeU;License: CC-BY