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 50, Problem 23TYK
Summary Introduction
Introduction: At the time of muscle contraction, the filaments of actin and myosin slide over each other. Sarcomere started to shorten because the Z disks come closer. When the Z lines come closer, the regions of I band and H zone almost disappear.
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Chapter 50 Solutions
Study Guide for Campbell Biology
Ch. 50 - List and describe the four functions common to all...Ch. 50 - Prob. 2IQCh. 50 - Label the parts in the following diagram of the...Ch. 50 - Label the parts of the human eye in the following...Ch. 50 - The receptive field of a ganglion cell includes...Ch. 50 - Prob. 6IQCh. 50 - Identify the components in the following diagram...Ch. 50 - a. Identify the three distinct types of skeletal...Ch. 50 - List an advantage and a disadvantage of each of...Ch. 50 - a. Which mode of locomotion is the most energy...
Ch. 50 - Prob. 1SYKCh. 50 - Prob. 2SYKCh. 50 - Prob. 3SYKCh. 50 - Prob. 1TYKCh. 50 - Prob. 2TYKCh. 50 - Prob. 3TYKCh. 50 - Prob. 4TYKCh. 50 - Prob. 5TYKCh. 50 - Prob. 6TYKCh. 50 - Prob. 7TYKCh. 50 - Prob. 8TYKCh. 50 - The eyes of individuals with achromatopsia contain...Ch. 50 - Which of the following structures is incorrectly...Ch. 50 - Prob. 11TYKCh. 50 - The absorption of light by rhodopsin in a rod cell...Ch. 50 - Prob. 13TYKCh. 50 - Prob. 14TYKCh. 50 - Prob. 15TYKCh. 50 - Prob. 16TYKCh. 50 - The role of ATP in muscle contraction is to a....Ch. 50 - How does calcium affect muscle contraction? a. It...Ch. 50 - Prob. 19TYKCh. 50 - Prob. 20TYKCh. 50 - Prob. 21TYKCh. 50 - Prob. 22TYKCh. 50 - Prob. 23TYKCh. 50 - Which of the following combinations of animal size...
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- Movement of a limb in two directions requires a pair of muscles becausea. a single muscle can only pull and not push.b. a single muscle can only push and not pull.c. moving a limb requires more force than one muscle can generate.d. None of the above.arrow_forwardThe working part of the muscle is called: A. Head B. Belly C. Tendon D. Aponeurosisarrow_forwardIf a tendon runs longitudinally throughout a muscle and fascicles insert obliquely on it along both sides, the muscle is classified as:- a. parallel. d. convergent. b. oblique. e. multipennate. c. bipennatearrow_forward
- When you bring your hand to your shoulder, your biceps muscle ____ and your triceps muscle ____. A.relaxes; contracts B.contracts; contracts C.contracts; relaxes D.lengthens; shortensarrow_forwardDuring muscle contraction, the I band a. hides the H zone. b. shortens or narrows. c. overlaps the Z line. d. always remains the same length.arrow_forwardMuscle spindles trigger the muscle to a. lengthen. b. relax. c. shorten. d. remain fixed.arrow_forward
- Muscles with a triangular shape, such as the pectoralis major muscle in the chest, typically have a: a. convergent fascicle arrangement. b. spiral fascicle arrangement. c. parallel fascicle arrangement. d. unipennate fascicle arrangementarrow_forwardWhat structure covers groups of whole muscles and forms compartments? Select one: a. aponeurosisb. fascia c epimysiumd. endomysium e. fasciaarrow_forwardMuscle that has a striped appearance is described as being a. elastic b. nonstriated c. excitable d. striatedarrow_forward
- The muscle responsible for action in a single direction is calleda. prime mover.b. antagonist.c. synergistic.d. adduction.arrow_forwardWhich of the following statements accurately describe(s) the action?a. Making a fist is flexing the fingers.b. Standing on tiptoes is dorsiflexion.c. Pitching a baseball is circumduction.d. Pointing with your arm straight in front of you is extending the arm.e. Squatting involves knee flexion.arrow_forwardTo make a muscle contract more strongly,the nervous system can activate more motorunits. This process is calleda. recruitment.b. summation.c. incomplete tetanus.d. twitch.e. concentric contractionarrow_forward
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