WorksheetsSliding Filament Theory
Total questions: 10
Worksheet time: 8mins
Name
Class
Date
1.
Which filament slides inward during muscle contraction
a)
Actin
b)
Myosin
2.
during full muscle contraction, which region disappear?
a)
I band
b)
M line
c)
H zone
d)
A band
3.
Which region consists only actin (thin filament)?
a)
I band
b)
M line
c)
H zone
d)
A band
4.
Which part separate one sarcomere to the next?
a)
M line
b)
I band
c)
H zone
d)
Z line
5.
The plasma membrane of a skeletal muscle cell is called the:
a)
sarcomere
b)
myofilament
c)
sarcolemma
d)
sarcoplasm
6.
What is the structure that stores the Calcium in the muscle cell.
a)
Sarcoplasm
b)
Sarcolemma
c)
Sarcoplasmic Reticulum
d)
Myoglobin
7.
What is a crossbridge?
a)
Where myosin head binds to myosin binding site on actin
b)
Where the calcium ion crosses into the sarcoplasm
c)
Where calcium ion binds with troponin complex
d)
None of the answers are correct.
8.
What state is the sarcomere in #1
a)
Relaxed
b)
Contracting
c)
Fully Contracted
d)
None of the above
9.
What state is the sarcomere in #2
a)
Relaxed
b)
Partially contracted
c)
Fully Contracted
d)
None of the above
10.
Do the lengths of the thick and thin filaments change during contraction?
a)
Yes
b)
No
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