Check all of the terms below that will correctly complete this statement. During a muscle fiber contraction, the _________ decreases in size.  Check All That ApplyA bandA bandentire sarcomereentire sarcomereH zoneH zoneI bandI band

Which event does not happen during muscle contraction ?Actin filaments move towards H-zone Decreased length of myosin filament Decreased length of sarcomereLength of A-band remains unchanged.

During muscle contraction, which area remains the same size?Group of answer choicesH zonesI bandsnone of the listed regions remain the same sizeA bands

During contraction of muscles following do not take place :-(a) Shortening of sarcomere            (b) Shortening of A-band(c) Shortening of actin    (d) Shortening of myosin

Statement-I :- During muscle contraction thin filaments slide over thick filaments.Statement-II :- During muscle contraction the 'I' bands get reduced, whereas the 'A' bands retain the length.In the light of the above statements, choose the most appropriate answer from the options given below :-Both Statement I and Statement II are incorrect.Statement I is correct but Statement II is incorrect.Statement I is incorrect but Statement II is correctBoth Statement I and Statement II are correct.

Contraction of muscle fibre takes place by the sliding of :-A Thin filaments over the actin filaments  B Thick filaments over the thin filaments  C Thin filaments over the thick filaments D Thick filaments over the myosin filaments