Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Textbook Question
Chapter 41, Problem 2RQ
Describe the process of skeletal muscle contraction, beginning with an action potential in a motor neuron and ending with the relaxation of the muscle. Your answer should include the following words: neuromuscular junction, T tubule, sarcoplasmic reticulum, calcium, thin filaments, binding sites, thick filaments, sarcomere, Z disc, and active transport.
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Students have asked these similar questions
Describe the process of skeletal muscle contraction, beginning with an action potential in a motor neuron and ending with the relaxation of the muscle. Your answer should include the following words: neuromuscular junction, T tubule, sarcoplasmic reticulum, calcium, thin filaments, binding sites, thick filaments, sarcomere, Z disc, and active transport.
Which 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, myofibril
In the sliding filament model of muscle contraction, I bands contain
sacrcomeres.
thin filaments.
thick filaments.
both thick and thin filaments.
myosin.
Which of the following is associated with retrograde movement?
dynein
myosin
kinesin
tubulin
actin
Chapter 41 Solutions
Biology
Ch. 41.1 - Prob. 1TCCh. 41.1 - Prob. 2TCCh. 41.1 - Prob. 1CSCCh. 41.1 - White meat or dark? It seems almost everyone has a...Ch. 41.1 - Prob. 1CYLCh. 41.1 - Prob. 2CYLCh. 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 - Why are thick, armor like exoskeletons found...Ch. 41.3 - Prob. 2TCCh. 41.3 - Prob. 3TCCh. 41.3 - Prob. 1CSCCh. 41.3 - Prob. 1CTCh. 41.3 - Prob. 1CYLCh. 41.3 - Prob. 2CYLCh. 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 - Prob. 1MCCh. 41 - Prob. 2MCCh. 41 - Prob. 3MCCh. 41 - Prob. 4MCCh. 41 - Prob. 5MCCh. 41 - The three types of skeletal systems found in...Ch. 41 - Prob. 2FIBCh. 41 - A skeletal muscle cells is called a(n)__________....Ch. 41 - Prob. 4FIBCh. 41 - Prob. 5FIBCh. 41 - Prob. 6FIBCh. 41 - Prob. 7FIBCh. 41 - Sketch a relaxed muscle fiber containing a...Ch. 41 - Describe the process of skeletal muscle...Ch. 41 - Explain the following two statements: Muscles can...Ch. 41 - What are the three types of skeletons found in...Ch. 41 - Compare the structures of the following pairs:...Ch. 41 - Explain the functions of osteoblasts and...Ch. 41 - Describe a hinge joint and how it is moved by...Ch. 41 - Discuss some of the problems that would result. If...Ch. 41 - Prob. 2AC
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- Figure 38.37 Which of the following statements about muscle contraction is true? The power stroke occurs when ATP is hydrolyzed to ADP and phosphate. The power stroke occurs when ADP and phosphate dissociate from the myosin head. The power stroke occurs when ADP and phosphate dissociate from the actin active site. The power stroke occurs when Ca2+ binds the calcium head.arrow_forwardThe correct order for the smallest to the largest unit of organization in muscle tissue is ________. fascicle, filament, muscle fiber, myofibril filament, myofibril, muscle fiber, fascicle muscle fiber, fascicle, filament, myofibril myofibril, muscle fiber, filament, fasciclearrow_forwardSkeletal muscle contraction requires _________. a. calcium ions b. ATP c. arrival of a nerve impulse d. all of the abovearrow_forward
- In the diagram below, label the fine structure of a muscle, down to one of its myofibrils. Identify the basic unit of contraction in a myofibril.arrow_forwardAfter death, a person no longer makes ATP, so calcium stored in the sarcoplasmic reticulum diffuses down its concentration gradient into the muscle cytoplasm. This result is rigor mortis----an unbreakable state of muscle contraction that stiffens the body for a few days until muscles begin to decay. Explain why this contraction occurs.arrow_forwardHow do actin and myosin interact in a sarcomere to bring about muscle contraction? What roles do ATP and calcium play?arrow_forward
- Explain why (a) calcium ions and (b) ACh are vital for muscle contraction.arrow_forwardNerve impulses first stimulate a skeletal muscle fiber at _______. a. T tubules b. sarcomeres c. neuromuscular junctions d. actin binding sitesarrow_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_forward
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