Worksheetsmblex practice II
Total questions: 45
Worksheet time: 28mins
a 2nd Class Lever has what in the middle
Fulcrum
Effort/force
Resistance/weight
For a first class level, the fulcrum is placed
Between the effort/force and resistance/weight
Effort/force in the middle with fulcrum on one end and resistance/weight on the other
Resistance/weight in the middle with fulcrum and effort/force on the ends
Standing on your toes is an example of what lever
1st class
2nd class
3rd class
What class lever occurs at the neck when nodding your head
1st class
2nd class
3rd class
What class lever is the arm using when a dart thrower is holding a dart up getting ready to throw?
1st class
2nd class
3rd class
What lever is likened to a wheelbarrow?
2nd class
3rd class
1st class
A muscle fibre type that has a high aerobic capacity is known as...
...type 1
...type 2a
...type 2b
...type 2x
A muscle fibre type that would be used for an 800 metre run is known as...
...type 1
...type 2a
...type 2b
...type 2x
Myofibrils are composed primarily of
actin and myosin
ATP and ADP
Troponin
Tropomyosin
Neurotransmitters are stored in vesicles within
motor units
motor neuron endings
myofibrils
motor end plates
During a muscle contraction, cross-bridges from between what two structures?
Actin and myosin fibers
neuron and muscle
mitochondria and actin
