# 1pilihan
What is the Sliding Filament Theory about?
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Sliding Filament Theory Latest
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Universiti
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Sliding Filament Theory Latest
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# 2pilihan
Which two proteins are mainly involved in the Sliding Filament Theory?
Actin and Myosin
Keratin and Collagen
Hemoglobin and Insulin
Gluten and Lactose
# 3pilihan
In the Sliding Filament Theory, what happens to the muscle when it contracts?
It gets longer
It stays the same
It gets shorter
It disappears
# 4pilihan
Which part of the body uses the Sliding Filament Theory?
Brain
Bones
Muscles
Heart only
# 5pilihan
What happens to the actin and myosin filaments during muscle contraction?
They break apart
They disappear
They slide past each other
They stay still
# 6pilihan
What is the role of myosin in muscle contraction?
To relax muscles
To make muscles grow
To pull on actin
To produce energy
# 7pilihan
When muscles relax, what happens to the actin and myosin filaments?
They disappear
They slide apart
They harden
They become shorter
# 8pilihan
Why is energy important in the Sliding Filament Theory?
It keeps us awake
It powers muscle contraction
It makes muscles grow
It is not needed
# 9pilihan
What would happen if actin and myosin could not slide past each other?
Muscles would be too strong
Muscles could not contract
Muscles would grow faster
Muscles would disappear
# 10pilihan
In the Sliding Filament Theory, what happens to the sarcomere during muscle contraction?
It lengthens
It shortens
It stays the same
It twists
# 11pilihan
Which ion is crucial for initiating the muscle contraction process?
Sodium
Calcium
Potassium
Chloride
# 12pilihan
What is the role of myosin in muscle contraction?
It binds to calcium
It forms cross-bridges with actin
It inhibits actin
It provides structural support
# 13pilihan
What is the name of the structure formed by actin and myosin filaments overlapping?
Cross-bridge
Z-line
A-band
I-band
# 14pilihan
Which of these bands remains unchanged during muscle contraction?
H-zone
A-band
I-band
Z-line
# 15pilihan
What is the function of tropomyosin in the muscle contraction process?
Activates myosin
Blocks myosin binding sites on actin
Releases calcium
Converts ATP to ADP
# 16pilihan
What happens to the H-zone as the muscle fully contracts?
It becomes larger
It becomes smaller
It stays the same
It disappears
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