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, Problem 3TYU
Test Your Understanding
3. An energy storage compound that can be stockpiled in muscle cells for short-term use is (a) myoglobin (b) ADP (c) troponin (d) myosin (e) creatine phosphate
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An energy storage compound that can be stockpiled in muscle cells for short-term use is (a) myoglobin (b) ADP (c) troponin (d) myosin (e) creatine phosphate
During the contraction of a vertebrate skeletal muscle fiber,calcium ions(A) break cross-bridges as a cofactor in hydrolysis of ATP.(B) bind with troponin, changing its shape so that the myosinbinding sites on actin are exposed.(C) transmit action potentials from the motor neuron to themuscle fiber.(D) spread action potentials through the T tubules.
The CrossFit workouts you and River perform consist of many bodyweight activities like pushups, pull-ups, and squats. Based on what you have been learning about muscles, what specific events are taking place at the cellular and molecular level of actin and myosin that allow you to AEROBICALLY CONTRACT muscles during these workouts?
Hint! Make sure to include in your answer: Ca2+, sliding filament model, and ATP
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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- Watch this video (http://openstaxcollege.org/l/micromacro) to learn more about macro- and microstructures of skeletal muscles. (a) What are the names of the junction points between sarcomeres? (b) What are the names of the subunits within the myofibrils that run the length of skeletal muscle fibers? (c) What is the “double strand of pearlsâ€� described in the video? (d) What gives a skeletal muscle fiber its striated appearance?arrow_forward1. What are the two types of muscle movement categories? Give an example for both. 2. Describe Swammerdam's experiment and Galvani's experiment with frog legs. What did they tell us abc ard contraction? 3. What is the sliding-filament model for muscle contraction? Describe the role of actin and myosin of sarcc the model (be specific). 4. Describe how an action potential triggers muscle contraction. Know the specific molecules involved. 5. Describe the structural and functional differences between smooth, cardiac and skeletal muscles. What are ardings ine E- three types of skeletal muscle fibers and how do they differ in structure and function? Library arly Alert « Previous Next MacBook Proarrow_forwardIn 2013, Zach Bitter set a new record for running a 100 mile Ultra-Marathon in less than 12 hours. (Holy smokes!!!) If we were to look at the composition of his skeletal muscles (particularly in his legs), we would likely find a greater proportion of: A)Type I Fibers b)Type IIX Fibers Creatine phosphate can supply the phosphate for conversion of ADP into ATP. The enzyme needed for this to occur is: A)creatine kinase B)creatine hydrolase C)adenylate cyclase D)adenylate phosphatasearrow_forward
- 3) Paula is a scientist who is developing a drug called Fremtol that will be used to treat muscle spasms. This drug acts on specific skeletal muscles to (1) block the release of Ca2+ ions from the sarcoplasmic reticulum, (2) inhibit the pivoting ability of the myosin heads of the thick filaments, and (3) block the production of ATP by the mitochondria in skeletal muscles. By using this drug, contraction of certain skeletal muscle fibers is reduced, which keeps those muscles from producing spasms. In the above scenario, Fremtol’s effect of blocking muscle mitochondrial ATP production would result in the inability of the muscle to make ATP from ___________. a. creatine phosphate b. anaerobic glycolysis c. aerobic respiration d. All of the above e. None of the abovearrow_forwardPlace these structures in order from LARGEST structure to SMALLEST: A) Myofibril B) Myofilament (MYOSIN) 1 C) Muscle Body D) Muscle Bundle (Fascicle) E) Muscle Fiber F) Myofilament (ACTIN)arrow_forward2) Paula is a scientist who is developing a drug called Fremtol that will be used to treat muscle spasms. This drug acts on specific skeletal muscles to (1) block the release of Ca2+ ions from the sarcoplasmic reticulum, (2) inhibit the pivoting ability of the myosin heads of the thick filaments, and (3) block the production of ATP by the mitochondria in skeletal muscles. By using this drug, contraction of certain skeletal muscle fibers is reduced, which keeps those muscles from producing spasms. In the above scenario, Fremtol’s effect of blocking the release of Ca2+ ions from the sarcoplasmic reticulum would most directly prevent which the following? a. activation of tropomyosin b. activation of troponin c. activation of actin d. All of the above e. None of the abovearrow_forward
- 15) what role does calcium play in muscle contraction? a) calcium is not involved in skeletal muscle contraction b) it binds to tropomyosin and moves Tripp in away from the myosin binding sit on the actin molecules c) it's binds to Troponin and moves tropomyosin away from the actin binding sit on the myosin molecules d) it binds to troponin and moves tropomyosin away from the myosin binding site on the actin molearrow_forward8. Neurons release acetylcholine, which binds to receptors on muscle cell membranes, stimulates an action potential in the muscle cell, and causes the muscle to contract. This statement is true false 9. Under muscle contraction, action potentials are carried along T tubules to the sarcoplasmic reticulum, where they cause the release of sodium ions. This statement is true false 10. In the sliding-filament model, the myosin molecules bend, causing the actin molecules to slide past. This statement is true falsearrow_forwardSmooth muscles relax when: a) myosin kinase phosphorylates the myosin head b) myosin phosphatase removes a phosphate group from myosin c) Ca2 + binds to calmodulin d) Ca2 + flows out of the sarcoplasmic reticulumarrow_forward
- Thank youarrow_forwardWhich of the following muscle cell components helps spread the depolarization of the muscle cell membranes throughout the interior of muscle cells? (A) Actin (B) Myosin CT tubule (D) Tropomyosin (E) Troponin (F) Z diskarrow_forward17.For the hierarchy of skeletal muscle organization, which accurately lists the order of structures from "small" to "big"?(This is a multiple choice question choose the answer from the choices below) A.skeletal muscle; bundles of muscle fiber; myofibril; muscle fiber; sarcomere B.sarcomere; myofibril; muscle fiber; bundles of muscle fiber; skeletal muscle C.skeletal muscle; sarcomere; muscle fiber; myofibril D.None of the choices are correct.arrow_forward
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Macromolecules | Classes and Functions; Author: 2 Minute Classroom;https://www.youtube.com/watch?v=V5hhrDFo8Vk;License: Standard youtube license