1
Question
As per the sliding filament theory, during muscle contraction the ___________ filament slides over the thick filament.
As per the sliding filament theory, during muscle contraction the ___________ filament slides over the thick filament.
Open in App
Solution
The correct option is A actin
The sliding filament theory is used to explain the mechanism of muscle contraction. According to this theory, thin filaments called actin filaments slide over myosin filaments (thick filaments). When the myosin head binds and pulls at the actin filament, the latter comes closer to the M-line (centre of A band). As a result, the Z-lines (centre of I band) come closer. The length of the sarcomere shortens, resulting in muscle contraction.
Collagen is a connective tissue which does not take part in the sliding of the filaments.
Creatine is an organic compound that ia converted into creatine phosphate in the body. Creatine phosphate provides energy for muscle contraction.
The sliding filament theory is used to explain the mechanism of muscle contraction. According to this theory, thin filaments called actin filaments slide over myosin filaments (thick filaments). When the myosin head binds and pulls at the actin filament, the latter comes closer to the M-line (centre of A band). As a result, the Z-lines (centre of I band) come closer. The length of the sarcomere shortens, resulting in muscle contraction.
Collagen is a connective tissue which does not take part in the sliding of the filaments.
Creatine is an organic compound that ia converted into creatine phosphate in the body. Creatine phosphate provides energy for muscle contraction.
Suggest Corrections
0
Similar questions