Question
Biology Question on locomotion and movement
Sliding filament theory can be best explained as
actin and myosin filaments do not shorten but rather slide pass each other
when myofilaments slide pass each other, myosin filaments shorten while actin filaments do not shorten
when myofilaments slide pass each other actin filaments shorten while myosin filaments do not shorten
actin and myosin filaments shorten and slide pass each other.
actin and myosin filaments do not shorten but rather slide pass each other
Solution
According to sliding filament theory, muscle contraction is brought about by sarcomere contraction. This is result of sliding of actin and myosin filaments past each other leading to shortening of I band and disappearance of the H zone. Options B, C and D are incorrect as the sarcomere shortens while both the filaments remain the same length.