Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 4.4, Problem 1CS
Summary Introduction
To determine: The type of movement occurring during muscle contraction.
Introduction: Muscles are attached to tendons and bones, and shortening of muscles is required in order to facilitate movements, but muscles are not required to move during contraction. Muscle fibers are bound together in bundles through successive connective tissue layers and the force from contracting the muscle is transmitted to the bones causing movement.
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Chapter 4 Solutions
Biology
Ch. 4.1 - What properties of deep-sea vents made them...Ch. 4.1 - Which protobiont seems most similar to todays...Ch. 4.1 - Core Skill: Connections Look back at Figure 3.11....Ch. 4.1 - Prob. 3CCCh. 4.2 - Prob. 1CCCh. 4.2 - Prob. 2CCCh. 4.3 - Prob. 1CSCh. 4.3 - Prob. 1CCCh. 4.3 - Prob. 2CSCh. 4.4 - Prob. 1CS
Ch. 4.4 - Describe the type of movements that occur between...Ch. 4.4 - Prob. 2CSCh. 4.5 - Prob. 1CCCh. 4.5 - Prob. 1CSCh. 4.5 - If we consider the Golgi apparatus as three...Ch. 4.5 - The Nucleus and Endomembrane System Experimental...Ch. 4.5 - Prob. 2EQCh. 4.5 - Prob. 3EQCh. 4.5 - Prob. 3CCCh. 4.6 - Prob. 1CCCh. 4.6 - Core Skill: Connections Look ahead to Figure...Ch. 4.7 - Prob. 1CCCh. 4.7 - Prob. 2CCCh. 4 - The cell theory states that a. all living things...Ch. 4 - Prob. 2TYCh. 4 - Prob. 3TYCh. 4 - Prob. 4TYCh. 4 - Each of the following is part of the endomembrane...Ch. 4 - Prob. 6TYCh. 4 - Functions of the smooth endoplasmic reticulum...Ch. 4 - Prob. 8TYCh. 4 - Prob. 9TYCh. 4 - Which of the following observations would not be...Ch. 4 - What are the four stages that led to the origin of...Ch. 4 - Explain how motor proteins and cytoskeletal...Ch. 4 - Prob. 3CQCh. 4 - Discuss the roles of the genome and proteome in...Ch. 4 - Prob. 2COQ
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- Skeletal muscle is described as striated. What are the lighter, thinner stripes noted under the microscope? Group of answer choices troponin actin myosin dystrophin Rather than innervating individual muscle fibers, motor neurons often innervate two or more muscle fibers. The motor neuron and the muscle fibers it innervates are together called a: Group of answer choices motor unit myofibril muscle fascicle motor fascia Fast glycolytic muscle fibers allow for relatively quick ATP energy production by splitting glucose (but eventually leads to fatigue), a process described as: Group of answer choices fermentation aerobic pathway anaerobic pathway ATP reserve usearrow_forwardLabel the structures of the myofibril model shown with overlying sarcoplasmic reticulumarrow_forwardA bands: Dark areas that correspond to the areas where thick filaments are present. • I hands: Light areas that contains only thin filaments. . Z line: A protein disk within the I band that anchors the thin filaments and connects adjacent myofibrils. • H zone: Located in the middle of each A band, this lighter stripe appears corresponding to the region between the thin filaments. • M line: Protein fibers that connect neighboring thick filaments. Sarcomeres: The region of the myofibril between two Z lines. ** Keep in mind, this information is crucial for your understanding of the sliding filament theory.arrow_forward
- What are the mechanisms for muscle contraction vs. relaxation in regards to myosin/thick filaments/thin filament movement? Is it true that if tropomysin blocks myosin sites, contraction ends and muscle relaxes?arrow_forwardercise 22 Review & Practice Sheet: Muscle Physiology Neurotransmitter: Submit Request Answer Part B Match each term listed with the correct description. Reset Help Wave summation Fusion of twitches: Twitch Time prior to tension: Depolarization Response to a single stimulus: Recruitment Latent period Shift in transmembrane potential toward 0 mV: Incomplete tetanus Activating more motor units: Contraction with rapid relaxation cycles: Submit Request Answerarrow_forwardCan you reverse muscle atrophy that is due to genetic abnormalities or chemical treatment such as after chemotherapy? What are the latest advancements in this field?arrow_forward
- Arrange the steps of muscle excitation and contraction in the correct order.arrow_forwardWhat is the main order histological structure of sarcomere? * Z line bind with actine without interaction with myosin Interaction of actine and myosin with Z line Interaction of myosin and actine with Z line Interaction of Z line with myosin and actinearrow_forwardSkeletal muscle cells undergo contractions based on a molecular mechanism involving: 1)the sliding of actin and myosin filaments past each other without any change in filament length 2) the shortening of actin filaments following direct interaction with myosin 3) dynamic instability of microtubules 4)nonearrow_forward
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