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Cross-Bridge Cycling
Quiz
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Science, Biology
•
11th Grade
•
Practice Problem
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Medium
Erin Baker
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26 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
___are thin filaments.
troponin
tropomyosin
actin
myosin
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
___are thick filaments.
actin
myosin
troponin
tropomyosin
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
___are regulatory proteins that cover the myosin binding site on the actin.
troponin-tropomyosin
sarcomere
sarcolemma
sarcoplasmic reticulum
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcium binds to ___of the troponin-tropomyosin complex.
troponin
tropomyosin
actin
myosin
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcium is stored in the ___.
sarcoplasm
sarcolemma
sarcoplasmic reticulum
transverse tubules
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A ___extends from one Z disc to another Z disc.
Sarcolemma
Neuromuscular junction
Sarcomere
Motor end plate
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
___gets shorter during contraction.
actin
myosin
troponin-tropomyosin
none of these
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