BIOL250 W10 QUIZ 7
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- BIOL250 A003 Fall 2023 - APEI
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W10: Quiz 7
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Question 1
4 / 4 points
A muscle-forming stem cell is called a what?
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Question 2
4 / 4 points
Which structures of cardiac muscle allows the cells to contract in
waves so the heart can work as a pump?
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Somite
Mesodermal cell
Myotube
Satellite cell
Myoblast
Good work; your answer is correct!
Syncytium
Nucleus
Intercalated discs
Gap junction
Desmosome
Good work; your answer is correct!
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Question 3
0 / 4 points
Which type of contraction allows a muscle to produce tension
without changing the angle of a skeletal joint or moving a load?
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Question 4
4 / 4 points
Upon skeletal muscle membrane depolarization, what structures
are triggered to open?
A packet of actin and myosin microfilaments
A motor neuron and the muscle fibers it innervates
All of the muscle fibers in a specific muscle
The sarcomere and its associated sarcolemma
A functional group of sarcomeres
A motor unit is comprised of a single motor neuron and all of the
muscle fibers it innervates.
Synaptic clefts
Voltage-gated sodium channels
Motor end plates
Axon hillocks
Neurotransmitters
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Question 5
4 / 4 points
Which two proteins interact to cause a contraction in skeletal
muscle?
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Question 6
4 / 4 points
The functional unit of a muscle fiber is called what?
Good work; your answer is correct!
Adenine and Guanine
Collagen and Actin
Keratin and Collagen
Myosin and Elastin
Actin and Myosin
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Question 7
4 / 4 points
Smooth muscle tissue can be found in all but which of the
following places?
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Sartorius
Sarcophagus
Sarcolemma
Sarcoplasmic reticulum
Sarcomere
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Artery walls
Stomach
Visceral organs
Heart
Skin
Good work; your answer is correct!
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Question 8
4 / 4 points
Where does a muscle fiber first respond to signaling from a motor
neuron?
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Question 9
4 / 4 points
In the Sliding Filament Model of Contraction, actin and myosin
filaments slide past one another using what as an energy source?
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Flexible hinge region
Myosin binding site
Neuromuscular Junction
ATP-binding site
Excitation point
Good work; your answer is correct!
Carbon Dioxide
NADH
DNA
ATP
ADP
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https://canvas.uts.edu.au/assessment questions/356986/files/1562694/download?
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URN: 9833360 |PATIENT: HERMIONE GRANGERDOB: 15 APRIL 2016 | PAEDS
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