14) When a muscle contracts anaerobically, more lactic acid is formed than when it contracts aerobically because A) oxygen inhibits fermentation of pyruvate to lactate Brunder anaerobic conditions, most pyruvate is fermented to ethanol C) under aerobic conditions, most pyruvate is oxidized to CO2 by the citric acid cycle D) glycolysis does not occur to a significant extent under aerobic conditions. E) it's been paralyzed by a 3000-fold excess of Botox

14) When a muscle contracts anaerobically, more lactic acid is formed than when it contracts aerobically because A) oxygen inhibits fermentation of pyruvate to lactate Brunder anaerobic conditions, most pyruvate is fermented to ethanol C) under aerobic conditions, most pyruvate is oxidized to CO2 by the citric acid cycle D) glycolysis does not occur to a significant extent under aerobic conditions. E) it's been paralyzed by a 3000-fold excess of Botox

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter32: Structural Support And Movement

Section: Chapter Questions

Problem 10SA: ATP for muscle contraction can be provided by ______. a. aerobic respiration b. lactate fermentation...

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10) The glycerol phosphate shuttle functions in. A) Lipid catabolism C) Anaerobic glycolysis for the regeneration of NAD 8) Triglyceride synthesis D) Aerobic glycolysis to transport NAH equivalents resulting from glycolysis into mitochondria. 11) In muscles, the pyruvate is converted into lactate. Find the correct statement A) During lactate formation, NADH is reconverted into NAD B) During the product of lactate two AT are produced C) Lactate is the substrate from the downstream pathway D) Lactate acts as the substrate for the formation of amino acid 12) Which of the following regulates lipolysis in adipocytes A) Activation of fatty acid synthesis mediated by CAMP 8) Glycerol phosphorylation to prevent futile esterification of fatty acids C) Activation of triglyceride lipase as a result of hormone stimulated increases in cAMP levels D) Activation of cAMP production by Insulin 13) Glycolysis consists of three irreversible steps. Which of the following enzyme catalyzes the reaction are…
Which of the following statements correctly describes why white muscle fibers do not need is mini mitochondria as red muscle fibers? a) want muscle fibers use anaerobic respiration which does not occur in the mitochondria b) what muscle fibers use anaerobic respiration which requires more efficient mitochondria than aerobic respiration c) white muscle fibers get more oxygen than the red muscle fibers
Which of the following is likely to happen in a muscle cell in an anaerobic environment? Question 9 options: a) The conversion of pyruvic acid to lactic acid b) The Krebs Cycle c) Photosynthesis d) The conversion of pyruvic acid to Acetyl CoA
(a) Starting with one molecule of glucose, how many ATPs are produced during (I) aerobic and (II) anaerobic respiration? (b) In chemiosmotic (oxidative) phosphorylation, what is the most direct source of energy that is used to convert ADP + Pi to ATP and what the driving force for the ATP formation through ATP synthase?
2) Discuss the production of lactate fermentation in vertebrate muscle cells. Why is this process inefficient?
The transformation of glucose to lactate in myocytes releases only about 7% of the free energy released when glucose is completely oxidized to CO2 and H2O. Does this mean that anaerobic glycolysis in muscle is a wasteful use of glucose? Explain.
Rank the molecules/sets of molecules highest to lowest in terms of how much ATP can be obtained from them during aerobic cell respiration. a) glucose > 2 pyruvate > 2 acetyl CoA b) 2 acetyl CoA > 2 pyruvate > glucose c) glucose > 2 acetyl CoA > 2 pyruvate d) 2 acetyl coA > glucose> 2 pyruvate e) 2 pyruvate > glucose > 2 acetyl CoA
30) Your body needs a constant supply of oxygen for cellular respiration to produce the ATP needed to fuel your body processes. When you exert yourself in a strenuous workout the oxygen demands of your muscle cells quickly outpace the oxygen your body can provide. Skeletal muscle cells that have an insufficient oxygen supply to allow aerobic respiration to continue will undergo lactic acid fermentation. Refer to the model above. Predict what changes will occur when your body shifts from aerobic respiration to anaerobic respiration (lactic acid fermentation). Select ALL that apply. A) Cells produce less ATP. B) Cells use more glucose. C) Cells produce more ATP. D) Cells produce more carbon dioxide. E) Lactic acid is produced as a byproduct. NOT GRADED
30) Your body needs a constant supply of oxygen for cellular respiration to produce the ATP needed to fuel your body processes. When you exert yourself in a strenuous workout the oxygen demands of your muscle cells quickly outpace the oxygen your body can provide. Skeletal muscle cells that have an insufficient oxygen supply to allow aerobic respiration to continue will undergo lactic acid fermentation. Refer to the model above. Predict what changes will occur when your body shifts from aerobic respiration to anaerobic respiration (lactic acid fermentation). Select ALL that apply. A) Cells produce less ATP. B) Cells use more glucose. C) Cells produce more ATP. D) Cells produce more carbon dioxide. E) Lactic acid is produced as a byproduct.NOT GRADED answer
Which of these is associated with production of ATP during glycolysis? (Select all that apply) a) Conversion of 1,3-BPG to 3PG b) Conversion of 1,3-BPG to 2,3-BPG c) Conversion of PEP to pyruvate d) Conversion of 2,3-BPG to 2PG e) Phosphorylation of glucose
10) a) Explain why the electron transport chain (ETC) is important for the energy producing in the cellular metabolism. b) Describe and explain the route followed by electrons from glucose to 02 and ATP synthesis. (think the energenics and chemiosmotic theory) Cytnsol mtochondrial montane intarmentne Iligh ner mtochordrial membane Matrt Law (1 ADPP ATP
6. Which of the following is true of aerobic respiration? A) It involves the reduction of oxygen. B) It involves the oxidation of oxygen. C) It involves the reduction of lactic acid. D) It involves the oxidation of lactic acid. E) It does not generate ATP.