Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 40, Problem 2TYK
Summary Introduction
Introduction: Muscle is the body tissue and it functions as a power source. Striated or skeletal muscle, smooth muscle, and cardiac muscle are the three types of muscles. The major function of the muscle system is movement. During the activity, the muscle produces heat, and it also maintains the posture of the body.
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Students have asked these similar questions
Which of the following statements relating to smooth muscle is true?
a. single-unit smooth muscles contract rhythmically due to gap junctions
b. multi-unit smooth muscles are arranged like skeletal muscle motor units
c. visceral smooth muscles exhibit spontaneous action potentials
d. multi-unit smooth muscles exhibit graded contractions in response to neural stimuli
e. all of the above
Skeletal muscle and cardiac muscle are similar in that both types of muscle a. have cells that branch. b. contain intercalated discs. c. are under involuntary control. d. are striated.
Which of the following statements about smooth muscle is correct:
Select one:
O
a. Endothelial secretion of NO results in relaxation of blood vessel wall smooth muscle
O
b. Its activity is not affected by nervous system
c. In smooth muscle cells myosin is deactivated by myosin light chain kinase
O
d. Its contraction is weaker than the contraction of skeletal muscle
Chapter 40 Solutions
Study Guide for Campbell Biology
Ch. 40 - List some advantages of a compact, complex body...Ch. 40 - Name the two types of epithelia illustrated below....Ch. 40 - Prob. 3IQCh. 40 - Prob. 4IQCh. 40 - What is positive feedback? Give an example. Are...Ch. 40 - Prob. 6IQCh. 40 - Prob. 7IQCh. 40 - Describe the following types of torpor. What...Ch. 40 - Organs are composed of layers of several different...Ch. 40 - Prob. 2SYK
Ch. 40 - Prob. 3SYKCh. 40 - Tunas, dolphins, penguins, and sharks all have a...Ch. 40 - Prob. 2TYKCh. 40 - Prob. 3TYKCh. 40 - Prob. 4TYKCh. 40 - Prob. 5TYKCh. 40 - Consider an epithelium consisting of several cell...Ch. 40 - Prob. 7TYKCh. 40 - Prob. 8TYKCh. 40 - Prob. 9TYKCh. 40 - Prob. 10TYKCh. 40 - Prob. 11TYKCh. 40 - Prob. 12TYKCh. 40 - Prob. 13TYKCh. 40 - Prob. 14TYKCh. 40 - Prob. 15TYKCh. 40 - Prob. 16TYKCh. 40 - Prob. 17TYKCh. 40 - For most terrestrial animals, the average daily...Ch. 40 - Prob. 19TYK
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- Which muscle type consists of long, cylindrical, striated cellswith multiple nuclei located at the periphery of the cell?a. smooth muscleb. cardiac musclec. skeletal muscled. All of these are correctarrow_forwardSkeletal muscle is composed of very hard workingcells. Which organelles do you expect to find in abundancein skeletal muscle cell?a. nucleib. striationsc. golgi bodiesd. mitochondriaarrow_forwardMuscle that has a striped appearance is described as being a. elastic b. nonstriated c. excitable d. striatedarrow_forward
- Which of these characteristics apply to smooth muscle?a. striated, involuntary c. unstriated, involuntaryb. striated, voluntary d. unstriated, voluntaryarrow_forwardWhich of the following statements is unique to skeletal muscle? O a) skeletal muscle has striations O b) skeletal muscle is attached to bones O c) skeletal muscle is under voluntary control O d) skeletal muscle is multinucleated O all of the above O b, c, & d but not aarrow_forwardTetanus is a disease caused by Clostridium tetani characterized by muscle spasms. Just like the toxin produced by Clostridium botulinum, this toxin produced by C. tetani interferes with muscle contractions. Where botulina toxin causes paralysis, C. tetani toxin causes muscle spasms and painful contractions lasting minutes at a time. Additional symptoms include stiffness and rigidity of muscles. Using your knowledge of how muscles contract explain what steps within a muscle contraction are being interfered with to cause these symptoms?arrow_forward
- Which of the following is required for contraction of myofibrils? Select one: a. bicarbonate ions b. sodium ions c. potassium ions d. calcium ions O O O Oarrow_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_forwardOn a microscopic scale, explain how muscle fibers move in order to make a muscle shorter? Explain why when we die our muscles contract into a state called rigor mortis.arrow_forward
- Which of the following could prevent skeletal muscle from contracting? Select one or more: a. Preventing calcium from surrounding myofibrils. b. Maintaining high levels of calcium around myofibrils c. Preventing sodium from entering a cell d. Allowing constant entry of sodium into a cellarrow_forwardWhich of the following is arranged in order from smallest tolargest?a. Motor unit < sarcomere < muscle cell < actin subunitb. Muscle cell < actin subunit < sarcomere < motor unitc. Actin subunit < sarcomere < muscle cell < motor unitd. Sarcomere < motor unit < actin subunit < muscle cellarrow_forwardIn what type of muscle would the structure illustrated in the image at right be found? A. The flight muscle of a bumblebee B. The longitudinal muscles underlying the cuticle in C. elegans C. The longitudinal muscles of the vertebrate intestine D. The cardiac muscle of mammals E. None of the above actin filament Dense body Relaxed myosin filament Contractedarrow_forward
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