Introduction to General, Organic and Biochemistry
12th Edition
ISBN: 9780357119303
Author: Bettelheim, Frederick A., Brown, William H., Campbell, Mary K., FARRELL, Shawn O., Torres, Omar
Publisher: Cengage Learning
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Chapter 26, Problem 52P
Interpretation Introduction
Interpretation:
The subunits which maintain connections between
Concept Introduction:
The full form of ATP is adenosine triphosphate which contains three phosphate groups. The energy in human beings is stored as ATP.
ATP is synthesized in mitochondria (called power house) by oxidative phosphorylation. It acts as a source of energy to carry out the biological process.
The full form of ADP is adenosine diphosphate which contains two phosphate groups. It is formed by the hydrolysis of ATP.
ATPase catalyzes the decomposition of the ATP into ADP.
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To learn more about the role of the electron transport chain in generating energy during respiration in this organism, you use two drugs. These drugs can each pick up electrons from specific intermediates in the pathway as shown above.
You treat cells carrying out respiration with either a saturating dose of drug A or B, so that all the electrons which would normally continue along the pathway are captured by the drug in question. Complete the following table.
In the presence of drug A, will the rate of ATP synthesis increase, decrease, or stay the same? Explain your reasoning.
In the presence of drug B, will the rate of ATP synthesis increase, decrease, or stay the same? Explain your reasoning.
A few hours after the death of an animal, the corpse will stiffen as a result of continued contraction of muscle tissue (this state is called rigor mortis). This phenomenon is the result of the loss of ATP production in muscle tissue.(a) Consult as shown and describe, in terms of the six-step model of muscle contraction, how a lack of ATP in sarcomeres would result in rigor mortis.(b) The Ca2+ transporter in sarcomeres that keeps the [Ca2+]∼10-7 Mrequires ATP to drive transport of Ca2+ ions across the membrane of thesarcoplasmic reticulum. How would a loss of this Ca2+ transport functionresult in the initiation of rigor mortis?(c) Rigor mortis is maximal at ∼12 hrs after death and by 72 hrs is nolonger observed. Propose an explanation for the disappearance of rigormortis after 12 hrs.
. Each gram of mammalian skeletal muscle consumes ATP at a rate of
about 1x 10-3 mol/min during contraction. Concentrations of
ATP and creatine phosphate in muscle are about 4 mM and 25 mM,
respectively, and the density of muscle tissue can be taken to be
about 1.2 g/cm'.
(a) How long could contraction continue using ATP alone?
(b) If all creatine phosphate were converted into ATP and utilized as
well, how long could contraction continue?
(c) What do these answers tell you?
Chapter 26 Solutions
Introduction to General, Organic and Biochemistry
Ch. 26.1 - Prob. 26.1QCCh. 26.2 - Prob. 26.2QCCh. 26.3 - Prob. 26.3QCCh. 26.4 - Prob. 26.4QCCh. 26.5 - Prob. 26.5QCCh. 26.6 - Prob. 26.6QCCh. 26.7 - Prob. 26.7QCCh. 26.8 - Prob. 26.8QCCh. 26 - Prob. 1PCh. 26 - Prob. 2P
Ch. 26 - Prob. 3PCh. 26 - Prob. 4PCh. 26 - Prob. 5PCh. 26 - Prob. 6PCh. 26 - (a) How many membranes do mitochondria have? (b)...Ch. 26 - Prob. 8PCh. 26 - Prob. 9PCh. 26 - Prob. 10PCh. 26 - Prob. 11PCh. 26 - Prob. 12PCh. 26 - Prob. 13PCh. 26 - Prob. 14PCh. 26 - What kind of chemical bond exists between the...Ch. 26 - Prob. 16PCh. 26 - Which atoms in the flavin portion of FAD are...Ch. 26 - NAD+ has two ribose units in its structure; FAD...Ch. 26 - Prob. 19PCh. 26 - The ribitol in FAD is bound to phosphate. What is...Ch. 26 - What kind Of chemical bond exists between the...Ch. 26 - Prob. 22PCh. 26 - Prob. 23PCh. 26 - Prob. 24PCh. 26 - Prob. 25PCh. 26 - Prob. 26PCh. 26 - Prob. 27PCh. 26 - Prob. 28PCh. 26 - Prob. 29PCh. 26 - Prob. 30PCh. 26 - Prob. 31PCh. 26 - Prob. 32PCh. 26 - Prob. 33PCh. 26 - Prob. 34PCh. 26 - Prob. 35PCh. 26 - Prob. 36PCh. 26 - Prob. 37PCh. 26 - Prob. 38PCh. 26 - Prob. 39PCh. 26 - Prob. 40PCh. 26 - Prob. 41PCh. 26 - Prob. 42PCh. 26 - Prob. 43PCh. 26 - Prob. 44PCh. 26 - Prob. 45PCh. 26 - Prob. 46PCh. 26 - Prob. 47PCh. 26 - Prob. 48PCh. 26 - Prob. 49PCh. 26 - Prob. 50PCh. 26 - Prob. 51PCh. 26 - Prob. 52PCh. 26 - Prob. 53PCh. 26 - A hexose (C6) enters the common metabolic pathway...Ch. 26 - Prob. 55PCh. 26 - Prob. 56PCh. 26 - Prob. 57PCh. 26 - Prob. 58PCh. 26 - Prob. 59PCh. 26 - Prob. 60PCh. 26 - Prob. 61PCh. 26 - Prob. 62PCh. 26 - Prob. 63PCh. 26 - Prob. 64PCh. 26 - Prob. 65PCh. 26 - Prob. 66PCh. 26 - Prob. 67PCh. 26 - Prob. 68PCh. 26 - Prob. 69PCh. 26 - What is the basic difference in the functional...Ch. 26 - Prob. 71PCh. 26 - Prob. 72PCh. 26 - Prob. 73PCh. 26 - Prob. 74PCh. 26 - Prob. 75PCh. 26 - Prob. 76PCh. 26 - Prob. 77PCh. 26 - Prob. 78PCh. 26 - Prob. 79PCh. 26 - Prob. 80PCh. 26 - Prob. 81PCh. 26 - Prob. 82PCh. 26 - Prob. 83PCh. 26 - Prob. 84PCh. 26 - Prob. 85PCh. 26 - Prob. 86PCh. 26 - Some soft drinks contain citric acid as flavoring....Ch. 26 - Prob. 88PCh. 26 - Prob. 89PCh. 26 - Prob. 90PCh. 26 - Prob. 91PCh. 26 - Prob. 92PCh. 26 - Prob. 93PCh. 26 - Prob. 94PCh. 26 - Prob. 95PCh. 26 - Prob. 96PCh. 26 - Prob. 97PCh. 26 - Why is it somewhat misleading to study biochemi-...Ch. 26 - Prob. 99PCh. 26 - Prob. 100PCh. 26 - Prob. 101PCh. 26 - Prob. 102PCh. 26 - Prob. 103PCh. 26 - Prob. 104PCh. 26 - Prob. 105PCh. 26 - Prob. 106PCh. 26 - Prob. 107PCh. 26 - Prob. 108PCh. 26 - Prob. 109PCh. 26 - Prob. 110PCh. 26 - Prob. 111PCh. 26 - Prob. 112P
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