Muscle Contractions Quick Check
Authored by Shannon Presloid
Science
12th Grade
Used 48+ times
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18 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is necessary for the myosin to release the actin?
ATP
Calcium
ADP
Sodium
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the myosin do to the actin?
Nothing
Pushes on it
Pulls on it
Breaks it into pieces
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a crossbridge?
Where myosin binds to actin
Where the calcium crosses into the cytoplasm
Where calcium binds with troponin
Where titin and myosin are connected
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does calcium do to the actin?
Covers myosin binding sites
Uncovers myosin binding sites
Covers actin binding sites
Uncovers actin binding sites
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the name of the protein that covers the binding sites on actin?
Myosin
Titin
Troponin
Tropomyosin
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the sarcoplasmic reticulum do?
Stores sodium
Stores ATP
Releases sodium
Stores calcium
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the name of the place where a nerve meets a muscle fiber
Nerve junction
Neuromuscular junction
Muscle junction
Crossbridge
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