PQ 6.4 THE SLIDING FILAMENT THEORY OF MUSCLE CONTRACTION
Authored by Igor Prostran
Biology
12th Grade
NGSS covered
Used 38+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the basic mechanism involved in muscle contraction?
Muscles push on the bones
Muscles pull on the bones
Muscles remain the same length
Muscles contract and relax
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What causes the filaments to slide in muscle contraction?
Release of calcium ions
Presence of troponin and tropomyosin
Interaction of myosin and actin molecules
Detachment of myosin from actin molecule
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the energy source for muscle relaxation?
Adenosine Triphosphate (ATP)
Calcium ions
Myosin crossbridges
Troponin and tropomyosin
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of ATP in muscle contraction?
To release calcium ions
To facilitate interaction of myosin and actin molecules
To detach myosin from actin molecule
To replenish energy for muscle contraction
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the sliding filament theory of muscle contraction?
Muscles contract by shortening
Muscles push on the bones
Filaments overlap and slide relative to each other
Filaments detach and reattach in rapid succession
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the trigger mechanism for the sliding filament process?
Release of myosin crossbridges
Presence of troponin and tropomyosin
Release of calcium ions
Detachment of myosin from actin molecule
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of myosin crossbridges in muscle contraction?
To release calcium ions
To facilitate interaction of myosin and actin molecules
To detach myosin from actin molecule
To create obstacles for muscle contraction
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