Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 41, Problem 1MC
Summary Introduction
Introduction:
Muscles are defined as soft tissues that are found in humans and animals. There are three types of muscles found in humans such as skeletal muscle, cardiac muscle, and smooth muscle. It contains filament protein such as actin and myosin that are responsible for the contraction of the muscle. Muscles also help to produce force and motion.
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Which of the following lists the structures from largest to smallest?a. motor unit, muscle, myofibril, muscle fiber, thick and thin filamentsb. muscle, muscle cell, myofibril, muscle fiber, actin and myosinc. muscle cell, thick and thin filaments, sarcomere, myofibrild. muscle, muscle fiber, myofibril, thick and thin filaments
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Chapter 41 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 41.1 - The legs of champion sprinters like Usain Sort...Ch. 41.1 - Prob. 1CYLCh. 41.1 - White meat or dark? It seems almost everyone has a...Ch. 41.1 - Prob. 1TCCh. 41.1 - Prob. 2CYLCh. 41.1 - Prob. 2TCCh. 41.1 - Prob. 3CYLCh. 41.1 - explain how the nervous system causes contraction...Ch. 41.2 - describe the similarities and differences between...Ch. 41.2 - compare cardiac and smooth muscle to skeletal...
Ch. 41.3 - As Bolt s and Kimettos athletic feats attest,...Ch. 41.3 - Prob. 1CSRCh. 41.3 - Prob. 1CYLCh. 41.3 - Prob. 1ETCh. 41.3 - Why are thick, armor like exoskeletons found...Ch. 41.3 - Prob. 2CYLCh. 41.3 - Prob. 2TCCh. 41.3 - list and describe the functions of the different...Ch. 41.3 - explain how a bone fracture is repaired and how...Ch. 41.3 - Prob. 5CYLCh. 41 - Discuss some of the problems that would result. If...Ch. 41 - The three types of skeletal systems found in...Ch. 41 - Prob. 1MCCh. 41 - Sketch a relaxed muscle fiber containing a...Ch. 41 - Prob. 2ACCh. 41 - Prob. 2FIBCh. 41 - Prob. 2MCCh. 41 - Describe the process of skeletal muscle...Ch. 41 - A skeletal muscle cells is called a(n)__________....Ch. 41 - Prob. 3MCCh. 41 - Explain the following two statements: Muscles can...Ch. 41 - Prob. 4FIBCh. 41 - Prob. 4MCCh. 41 - What are the three types of skeletons found in...Ch. 41 - Prob. 5FIBCh. 41 - Prob. 5MCCh. 41 - Compare the structures of the following pairs:...Ch. 41 - Prob. 6FIBCh. 41 - Explain the functions of osteoblasts and...Ch. 41 - Prob. 7FIBCh. 41 - Describe a hinge joint and how it is moved by...
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- Which component is responsible for initially stimulating a muscle contraction? a. proteins b. electrochemical signals c. plasma membranes d. striationsarrow_forwardWhat structure in skeletal muscle cells functions in calcium storage? a.myofibrillar network b.sarcoplasmic reticulum c.intermediate filament network d.mitochondriaarrow_forwardWhich choice lists the components of a muscle from the smallest unit to the largest unit? A. myofibril, filament, sarcomere, muscle fiber B. filament, sarcomere, myofibril, muscle fiber C. sarcomere, filament, muscle fiber, myofibril D. muscle fiber, filament, sarcomere, myofibrilarrow_forward
- When sarcomeres contract during muscle contraction, which of the following occurs? A. The myosin filaments lengthen. B. The myosin filaments "walk" along the actin microfilaments. C. The myosin filaments shorten. D. The actin filaments shorten.arrow_forwardContraction of muscles requires binding of various components of muscle fiber. Which of the following rows correctly matches two components of muscle fibre that bind with each other? Row Component of muscle fibre Component of muscle fibre A. Ca2+ myosin B. troponin myosin C. troponin tropomyosin D. actin Ca2+arrow_forwardWhich 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.arrow_forward
- Which of the following statements about the connective sheath of skeletal muscle is false? a. the endomysium wraps around every single muscle fiber b. the perimysium wraps around groups of muscle fibers c. the epimysium wraps around the whole muscle organ d. all of the above e. none of the abovearrow_forwardThe mechanism of muscle contraction is best explained by the sliding filament model. According to this model, thin ___i___ filaments slide over thick ___ii___ filaments.The statement given above is completed by information in row Row i ii A. myosin actin B. myosin myosin C. actin actin D. actin myosinarrow_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_forward
- The correct order for the smallest to the largest unit oforganization in muscle tissue is ________.a. fascicle, filament, muscle fiber, myofibrilb. filament, myofibril, muscle fiber, fasciclec. muscle fiber, fascicle, filament, myofibrild. myofibril, muscle fiber, filament, fasciclearrow_forwardThe Sarcomere 2 Thin filaments are often named for which protein? a. actin b. myosin c. troponin d. tropomyosinarrow_forwardIdenttidy which among the list represents the hierarchy of muscle structure from the largest unit to the smallest? A.muscle fiber → myofibril → sarcomere → filaments B.sarcomere → myofibril → filaments → muscle fiber C.muscle fiber → sarcomere → myofibril → filaments D. myofibril → muscle fiber → sarcomere → filamentsarrow_forward
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