Muscle Contraction Flashcard
Flashcard
•
Science
•
11th Grade
•
Practice Problem
•
Easy
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the thick band in muscle fibers that has heads and is responsible for muscle contraction?
Back
Myosin
2.
FLASHCARD QUESTION
Front
What specific type of muscle tissue is responsible for voluntary movements and is attached to bones?
Back
Skeletal Muscle
3.
FLASHCARD QUESTION
Front
Which proteins make up the thin band in muscle fibers?
Back
Actin, Troponin, Tropomyosin
4.
FLASHCARD QUESTION
Front
What is the role of tropomyosin in muscle contraction?
Back
It blocks the binding sites on actin, preventing muscle contraction when calcium is not present.
5.
FLASHCARD QUESTION
Front
What enzyme breaks down acetylcholine to prevent continuous muscle contraction?
Back
Acetylcholinesterase
6.
FLASHCARD QUESTION
Front
What is the primary energy molecule required for muscle contraction?
Back
ATP (Adenosine Triphosphate)
7.
FLASHCARD QUESTION
Front
What ion is crucial for initiating muscle contraction by binding to troponin?
Back
Calcium (Ca2+)
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