Modified MasteringBiology with Pearson eText -- ValuePack Access Card -- for Human Biology: Concepts and Current Issues
8th Edition
ISBN: 9780134326405
Author: Michael D. Johnson
Publisher: PEARSON
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Textbook Question
Chapter 4, Problem 6TY
What property do all muscle tissues have in common?
a. composed of collagen and elastin filaments
b. under conscious control
c. ability to form a communication network
d. ability to contract
e. cells are joined by tight junctions
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Which is a false statement about skeletal muscle structure?a. A myofibril is composed of multiple muscle fibers.b. Most skeletal muscles attach to bones by connective-tissue tendons.c. Each end of a thick filament is surrounded by six thin filaments.d. A cross-bridge is a portion of the myosin molecule.e. Thin filaments contain actin, tropomyosin, and troponin.
Which of the following changes takes place when a skeletal muscle contracts?A. Z discs move farther apart.B. Actin filaments contract.C. Myosin filaments contract.D. Sarcomeres become shorter.
Which of the following statements about skeletal muscle is CORRECT?
Select one:
a. An increase in Na+ concentration in the cytosol starts muscle filament sliding.
b. The muscle is non-striated and involuntary.
c. The muscle is involved in shivering thermogenesis.
d. The muscle contracts in response to parasympathetic stimulation.
e. The muscle contracts in response to hormones.
Chapter 4 Solutions
Modified MasteringBiology with Pearson eText -- ValuePack Access Card -- for Human Biology: Concepts and Current Issues
Ch. 4 - Health clinics sometimes cite retrospective...Ch. 4 - How important to you is FDA approval and/or...Ch. 4 - Describe some advantages and disadvantages of...Ch. 4 -
2. Name the four main types of tissues in the...Ch. 4 - Prob. 3CRCh. 4 - Prob. 4CRCh. 4 - List the 11 organ systems of the body and give at...Ch. 4 -
6. Define interstitial fluid.
Ch. 4 - Name the two cavities of the anterior body cavity...Ch. 4 - Prob. 8CR
Ch. 4 - Discuss the purpose of homeostasis in the body.Ch. 4 - Prob. 10CRCh. 4 -
1. Collagen and elastin fibers are typically...Ch. 4 -
2. Cells in cardiac muscle are able to contract...Ch. 4 - Which of the following membranes is not composed...Ch. 4 -
4. Exocrine and endocrine glands are types...Ch. 4 - Prob. 5TYCh. 4 - What property do all muscle tissues have in...Ch. 4 -
7. Injury to bone heals more quickly than injury...Ch. 4 - Which of the following tissues may be found in the...Ch. 4 - Which of the following is responsible for skin...Ch. 4 - Prob. 10TYCh. 4 - Prob. 11TYCh. 4 - Prob. 12TYCh. 4 - A substantial amount of nonliving extracellular...Ch. 4 - Prob. 14TYCh. 4 - Reducing food intake may lead to weight loss by...Ch. 4 -
1. Your roommate says that the concept of...Ch. 4 - What do you think would be some of the problems...Ch. 4 - Sherlock Holmes, the greatest fictional detective...Ch. 4 -
4. Dieting is difficult. People who do manage to...Ch. 4 - Fibrous connective tissue consists of ground...Ch. 4 -
6. By definition, an organ is a structure...
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- Which component is responsible for initially stimulating a muscle contraction? a. proteins b. electrochemical signals c. plasma membranes d. striationsarrow_forwardWhy do you think a person is able to perform anaerobic exercise (such as lifting and holding a heavy weight) only briefly but can sustain aerobic exercise (such as walking or swimming) for long periods? (Hint: Muscles have limited energy stores.)arrow_forwardYou are training athletes for the 100-meter dash. They need muscles specialized for speed and strength, not endurance. What muscle characteristics would your training regimen aim to develop? How would you alter it to train a long-distance swimmer?arrow_forward
- The _____ is the basic unit of muscle contraction. a. myofibril b. sarcomere c. muscle fiber d. myosin filamentarrow_forwardWhat aspect of creatine phosphate allows it to supply energy to muscles? ATPase activity phosphate bonds carbon bonds hydrogen bondsarrow_forwardHow do actin and myosin interact in a sarcomere to bring about muscle contraction? What roles do ATP and calcium play?arrow_forward
- Skeletal, smooth, and cardiac muscle are similar in that they all _____. A are divided into motor units B require calcium in order to contract C undergo mitosis frequently to replace dead or damaged cells D have small round cells connected by gap junctionsarrow_forwardAll of the following characteristics apply to skeletal muscle except a. They are striated. b. They are multinucleated. c. They are voluntary. d. They contain intercalated discs. e. They are attached to the skeleton by means of tendons.arrow_forwardWhich of the following statements best describes the sliding filament mechanism of muscle contraction? a. Actin and myosin filaments do not shorten, but rather, slide past each other. b. Actin and myosin filaments shorten and slide past each other. c. As they slide past each other, actin filaments shorten, but myosin filaments do not shorten. d. As they slide past each other, myosin filaments shorten, but actin filaments do not shorten.arrow_forward
- Which of the following characteristics does not apply to skeletal muscle tissue? a. striated b. voluntary c. multinucleated d. spindle shaped cells e. All of the above are correctarrow_forwardWhat property do all muscle tissues have in common?a. composed of collagen and elastin filamentsb. under conscious controlc. ability to form a communication networkd. ability to contracte. cells are joined by tight junctionsarrow_forwardHow does calcium release in the muscle fiber result in the cross-bridge for contraction? Use key terms below and identify them on a diagram. Ca+2, troponin, tropomyosin, thin filaments (actin), thick filaments (myosin w/head), cross bridgearrow_forward
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