Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 40.3, Problem 3C
Summary Introduction
To compare: The functions of adenosine triphosphate (ATP), creatine phosphate, and glycogen in muscle contraction and contrast them.
Introduction: Skeletal muscles are responsible for the production of motion in the body. When a muscle contracts, then the bone attached to it either pulls or pushes in the motion of articulation. In vertebrates, the most abundant tissue that is found in the body is called muscle fibers. They are composed of units of muscle fibers. For the purpose of the motion, muscle fibers require energy for their functioning. In muscle contraction, the major role is played by the presence of ATP, creatine phosphate, and glycogen.
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Chapter 40 Solutions
Biology (MindTap Course List)
Ch. 40.1 - Compare the functions of the epithelial coverings...Ch. 40.1 - Prob. 2LOCh. 40.1 - Prob. 1CCh. 40.1 - Prob. 2CCh. 40.1 - Prob. 3CCh. 40.1 - Prob. 4CCh. 40.2 - Compare the structure and functions of different...Ch. 40.2 - Describe the main divisions of the vertebrate...Ch. 40.2 - Prob. 5LOCh. 40.2 - Prob. 6LO
Ch. 40.2 - Prob. 1CCh. 40.2 - Prob. 2CCh. 40.2 - Prob. 3CCh. 40.2 - Prob. 4CCh. 40.3 - Prob. 7LOCh. 40.3 - Prob. 8LOCh. 40.3 - Prob. 9LOCh. 40.3 - Compare the roles of glycogen, creatine phosphate,...Ch. 40.3 - Compare the structures and functions of the three...Ch. 40.3 - Prob. 12LOCh. 40.3 - Prob. 1CCh. 40.3 - Prob. 2CCh. 40.3 - Prob. 3CCh. 40.3 - Prob. 4CCh. 40 - Prob. 1TYUCh. 40 - Prob. 2TYUCh. 40 - Test Your Understanding 3. An energy storage...Ch. 40 - Prob. 4TYUCh. 40 - Prob. 5TYUCh. 40 - Prob. 6TYUCh. 40 - Prob. 7TYUCh. 40 - Prob. 8TYUCh. 40 - Evaluate and Synthesize 9. INTERPRET DATA Examine...Ch. 40 - Prob. 10TYUCh. 40 - Prob. 11TYUCh. 40 - Prob. 12TYUCh. 40 - Prob. 13TYUCh. 40 - Prob. 14TYU
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- What is the function of the sarcoplasmic reticulum in muscle cell contraction?arrow_forwardHow do actin and myosin interact in a sarcomere to bring about muscle contraction? What roles do ATP and calcium play?arrow_forwardFigure 38.37 Which of the following statements about muscle contraction is true? The power stroke occurs when ATP is hydrolyzed to ADP and phosphate. The power stroke occurs when ADP and phosphate dissociate from the myosin head. The power stroke occurs when ADP and phosphate dissociate from the actin active site. The power stroke occurs when Ca2+ binds the calcium head.arrow_forward
- Skeletal muscle cells undergo contractions based on a molecular mechanism involving: 1)the sliding of actin and myosin filaments past each other without any change in filament length 2) the shortening of actin filaments following direct interaction with myosin 3) dynamic instability of microtubules 4)nonearrow_forwarddescribe the events that lead to muscle contraction starting at the level of the neuromuscular junction. Make sure to use the terms: myosin, actin, calcium, troponin, tropomyosin, T tubules, SR, myosin head, ATP.arrow_forwardDiscuss the specific role of ATP in muscle contraction.arrow_forward
- List and describe all of the major events that occur during a muscle contraction starting with the arrival of a motor command at a neuromuscular junction and ending with the shortening of the sarcomere.arrow_forwardDescribe the protein structures involved in muscle contraction. Illustratearrow_forwardExplain the molecular mechanism of muscle contraction.arrow_forward
- Explain the sliding filament theory of muscle contraction, including the following parts; thich (myosion) filaments, thin (actin) filaments, myosin heads, tropomyosin, troponin, ATP, active sites, calcium.arrow_forwardDescribe the relationship between the resting muscle length and the strength of its contraction. Hint: look at the length tension curve for skeletal musclearrow_forwardIndicate which of the following are true. Chronically shortened muscles will lose sarcomeres in series in order to maintain ideal amounts of myofilament overlap. Contractile force is proportional to the length of a muscle. Muscle organ contraction is all or nothing. Muscle cells are surrounded by an endomysium. Actin is the thick filament and Z-lines are where the cross-bridges zig-zag to adjacent actin filaments. Muscles with fewer motor units are weaker, i.e., capable of less force. A nerve impulse, calcium, and ATP are necessary for muscle contraction. Tendons attach bones to bones and help to limit the range of motion at joints. Muscle tissue is very dynamic and will respond to chronic stress by becoming stronger (making more myofilaments), chronic contraction by becoming shorter (losing sarcomeres in series), and stretching by becoming longer (adding sarcomeres in series). Myofilaments are actually long strands of proteins.arrow_forward
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