What is the role of Myosin in muscle contraction?
U5 Practice Test Muscular System 24-25

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Science
•
9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Myosin is a thick filament that interacts with actin to facilitate muscle contraction.
2.
FLASHCARD QUESTION
Front
What is the role of Actin in muscle contraction?
Back
Actin is a thin filament that interacts with myosin during muscle contraction.
3.
FLASHCARD QUESTION
Front
What are the two types of muscle fibers?
Back
The two types of muscle fibers are slow-twitch (Type I) and fast-twitch (Type II).
4.
FLASHCARD QUESTION
Front
What is a neurotransmitter?
Back
A neurotransmitter is a chemical messenger, such as acetylcholine, that transmits signals across a synapse from one neuron to another.
5.
FLASHCARD QUESTION
Front
What are antagonistic muscles?
Back
Antagonistic muscles are pairs of muscles that work against each other to create movement.
6.
FLASHCARD QUESTION
Front
What is the function of the Z Line in a sarcomere?
Back
The Z Line defines the boundaries of a sarcomere and anchors the actin filaments.
7.
FLASHCARD QUESTION
Front
What is the function of the M Line in a sarcomere?
Back
The M Line is the middle line of the sarcomere that anchors the myosin filaments.
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