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WorksheetsSliding Filament Theory
Total questions: 18
Worksheet time: 9mins
Please select the correct order
1. Muscle cell releases calcium
2. Neurotransmitter releases acetylcholine
3. Sodium & Potassium pump opens
4. Acteylcholine signals cell membrane gates to open
1. Neurotransmitter releases acetylcholine
2. Acteylcholine signals cell membrane gates to open
3. Sodium & Potassium pump opens
4. Muscle cell releases calcium
1. Sodium & Potassium pump opens
2. Acteylcholine signals cell membrane gates to open
3. Muscle cell releases calcium
4. Neurotransmitter releases acetylcholine
1. Neurotransmitter releases acetylcholine
2. Acteylcholine signals cell membrane gates to open
3. Muscle cell releases calcium
4.Sodium & Potassium pump opens
As calcium binds to actin the myosin heads are allowed to bind to the actin forming a cross-bridge and begin to slide over mysoin.
True
False
When ATP binds to the myosin head the myosin head then _____________.
completes a power stroke
attaches to actin
rotates
detaches from actin
Looking at the figure what molecule will allow the myosin head to detach from actin.
ADP
Myosin
ATP
Creatine Phosphate
Looking at the figure which one is a fully contracted muscle?
A
B
C
All are contracted
Which is not a way that cells make energy?
Creatine Phosphate
Fermentation
Cellular Respiration
Sliding Filament Theory
For activities that last hours which energy-making process does your body go through?
Creatine Phosphate
Fermentation
Cellular Respiration
Sliding Filament Theory
The fastest way to make ATP available for muscles
Creatine Phosphate
Fermentation
Cellular Respiration
Sliding Filament Theory
Which equation does this belong to: Glucose ->2 ATP + pyruvic acid->lactic acid?
Creatine Phosphate
Fermentation
Cellular Respiration
Sliding Filament Theory
Actin is the ...
Thick Filament within a Muscle Fibre
Thin Filament within a Muscle Fibre
Protein that covers myosin-binding sites
Molecule that causes muscle contraction
Myosin is the ...
Thin Filament of a muscle fibre
Segment of a muscle fibre
A molecule that changes shape when bound with Calcium Ions
Thick Filament of a muscle fibre
Myofibril is an arrangement of ___________ within a muscle fibre.
Bands
Sacromeres
Proteins
Crossbridges
True or False: Cross-bridges is when a myosin head attaches to an actin during contraction
True
False
What does the Myosin Heads release to relax and pull the Actin filament?
ATP
ADP
CNS
ETC
What causes the muscle to stop contracting?
Lack of effort
Myosin-Heads fail to attach
Calcium Ions are pumped away
Muscle fibre tears
___are regulatory proteins that cover the myosin binding site on the actin.
troponin-tropomyosin
sarcomere
sarcolemma
sarcoplasmic reticulum
Calcium is stored in the ___.
sarcoplasm
sarcolemma
sarcoplasmic reticulum
transverse tubules
___slides inward during muscle contraction.
actin
myosin
