Anatomy & Physiology
5th Edition
ISBN: 9780321861580
Author: Marieb, Elaine N.
Publisher: Pearson College Div
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Textbook Question
Chapter 9, Problem 9RQ
During muscle contraction, ATP is provided by (a) a coupled reaction of creatine phosphate with ADP, (b) aerobic respiration of glucose and (c) anaerobic glycolysis.
_____(1) Which provides ATP fastest?
_____(2) Which does (d) not require that oxygen be available?
_____(3) Which provides the highest yield of ATP per glucose molecule?
_____(4) Which results in the formation of lactic acid?
_____(5) Which has carbon dioxide and water products?
_____(6) Which is most important in endurance sports?
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Select the best answer or answers from the choices given: During muscle contraction, ATP is provided by (a) a coupled reaction of creatine phosphate with ADP, (b) aerobic respiration of glucose, and (c) anaerobic glycolysis.
Chapter 9 Solutions
Anatomy & Physiology
Ch. 9 - When describing muscle, what does striated mean?Ch. 9 - Prob. 2CYUCh. 9 - How does the term epimysium relate to the role and...Ch. 9 - Which myofilaments have binding sites for calcium?...Ch. 9 - Which region or organelle-cytosol, mitochondrion,...Ch. 9 - What are the three structural components of a...Ch. 9 - What is the final trigger for contraction? What is...Ch. 9 - What prevents the filaments from sliding back to...Ch. 9 - What would happen if a muscle fiber suddenly ran...Ch. 9 - What is a motor unit?
Ch. 9 - What is happening in the muscle during the latent...Ch. 9 - Prob. 12CYUCh. 9 - When Eric returned from jogging, he was breathing...Ch. 9 - List two factors that influence contractile force...Ch. 9 - Prob. 15CYUCh. 9 - How do aerobic and resistance exercise differ in...Ch. 9 - Compare the structures of skeletal and smooth...Ch. 9 - Calcium is the trigger for contraction of all...Ch. 9 - How does the stress-relaxation response suit the...Ch. 9 - The connective tissue covering that encloses the...Ch. 9 - Prob. 2RQCh. 9 - Prob. 3RQCh. 9 - Prob. 4RQCh. 9 - Prob. 5RQCh. 9 - Contraction elicited by a single brief stimulus is...Ch. 9 - A smooth, sustained contraction resulting from...Ch. 9 - Characteristics of isometric contractions include...Ch. 9 - During muscle contraction, ATP is provided by (a)...Ch. 9 - The neurotransmitter released by somatic motor...Ch. 9 - The ions that enter the skeletal muscle cell...Ch. 9 - Myoglobin has a special function in muscle tissue....Ch. 9 - 13. Aerobic exercise results in all of the...Ch. 9 - The smooth muscle type found in the walls of...Ch. 9 - Name and describe the four special functional...Ch. 9 - Distinguish between (a) direct and indirect muscle...Ch. 9 - (a) Describe the structure of a sarcomere and...Ch. 9 - What is the importance of acetylcholinesterase in...Ch. 9 - Explain how a slight (but smooth) contraction...Ch. 9 - Explain what is meant by the term...Ch. 9 - Define and draw a motor unit.Ch. 9 - Describe the three distinct types of skeletal...Ch. 9 - True or false: Most muscles contain a predominance...Ch. 9 - Describe some cause(s) of muscle fatigue and...Ch. 9 - Define EPOC.Ch. 9 - Smooth muscle has some unique properties, such as...Ch. 9 - Lets continue our tale of Mrs. DeStephanos medical...Ch. 9 - Lets continue our tale of Mrs. DeStephanos medical...Ch. 9 - Lets continue our tale of Mrs. DeStephanos medical...Ch. 9 - Lets continue our tale of Mrs. DeStephanos medical...
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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
- For a skeletal muscle to remain rigidly contracted, it needs a continual supply of ATP. Yet, when a skeletal muscle runs out of ATP (in a corpse), it becomes rigid. How can you explain this seeming paradox? Explain how skeletal muscle may remain relaxed even if ATP levels are high.arrow_forwardMuscles may become hypoxic during the early stages of exercise, causing lactate to build up. a) Describe in detail how a lack of oxygen might cause lactate to build up in the muscles. b) Explain how lactate (typically thought of as a waste product) may be converted to glucose via gluconeogenesis.arrow_forwardDescribe the two mechanisms by which muscle glycogen is broken down to glucose (glycogenolysis) for use in glycolysis. Which one is activated at the same time as muscle contraction?arrow_forward
- In a long period of intense exercise, why does muscle generate ATP anaerobically at first and then switch to aerobicrespiration?arrow_forwardImpairment of intracellular calcium homeostasis in muscle fibers lead to chronic, severe muscle dysfunction. Impaired Calcium ATPase activity can lead to abnormal, persistent elevation of intracellular calcium concentrations. Explain how persistently high intracellular calcium concentration would affect cross-bridge formation, and muscle contractions, and muscle tension? (Mention the effects on the steps involved cross bridge formation, and muscle contraction/relaxation cycle, and overall muscle tension).arrow_forwardSkeletal muscle fibres are very metabolically active and are adapted to create a lot of ATP from aerobic cellular respiration. Additionally, cells require other things to stay alive. Explain how the following three organ systems contribute to allowing a muscle cell to carry out its roles: a) Respiratory system b) Cardiovascular system c) Gastrointestinal system asap please.arrow_forward
- During the initial phase of exercise, muscles can become hypoxic which leads to the buildup of lactate. a) Fully explain how oxygen shortage can lead to the accumulation of lactate in the muscles. b) Describe how lactate (often seen as a waste product) can produce glucose via gluconeogenesis.arrow_forwardMatch types of fibers with their description. These fibers possess large number of mitochondria and are capable of contracting for longer period. ... . Primarily use aerobic respiration but may switch to anaerobic Use anaerobic glycolysis as their ATP source. Use aerobic respiration as their ATP source These fibers are primarily used for movements such as walking. Fatigue quickly 1. Fast Glycolytic (FG) 2. Slow Oxidative (SO) 3. Fast Oxidative (FO)arrow_forwardWhy is it in the muscle’s best interest to export lactic acid into the blood during intense exercise?arrow_forward
- Trace the fate of hydrogens removed from glucose during glycolysis when oxygen is present in muscle cells; compare this to the fate of hydrogens removed from glucose when the amount of available oxygen is insufficient to support aerobic respiration.arrow_forwardState whether each statement is true or false. If the statement is false, correct it so it can be true. (a) Oxidative phosphorylation generates heat by converting ADP to ATP. (b) The effects of a poison on actively respiring mitochondria are being studied to determine its mode of action. When the poison is added, all proteins and Q in the electron transport chain are in the reduced form, and ATP production stops. (Assume electron transport is continuously occurring.) This means that the poison could be inhibiting complex I.arrow_forwardDiscuss the metabolic pathways of ATP production in skeletal muscle in terms of timing, mechanism, and function.arrow_forward
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