I-band: The I-band is the light-colored band in the sarcomere. It contains only actin filaments.
A-band: The A-band is the dark-colored band in the sarcomere. It contains both actin and myosin filaments.
The sarcomere is the region of a myofibril between two successive Z-lines. A myofibril is a long, thin strand of muscle tissue that is made up of sarcomeres. Sarcomeres are the basic contractile units of muscle tissue. The Z-line is a thin, dark line that marks the boundary of a sarcomere. It is made up of a protein called α-actinin, which helps to anchor the actin filaments in place.
M-line: The M-line is a thin line in the center of the A-band. It is made up of a protein called myomesin, which helps to stabilize the myosin filaments.
Option C is correct.
The sarcomere is the region of a myofibril between two successive Z-lines. A myofibril is a long, thin strand of muscle tissue that is made up of sarcomeres. Sarcomeres are the basic contractile units of muscle tissue. The Z-line is a thin, dark line that marks the boundary of a sarcomere. It is made up of a protein called α-actinin, which helps to anchor the actin filaments in place.
I-band: The I-band is the light-colored band in the sarcomere. It contains only actin filaments.
A-band: The A-band is the dark-colored band in the sarcomere. It contains both actin and myosin filaments.
M-line: The M-line is a thin line in the center of the A-band. It is made up of a protein called myomesin, which helps to stabilize the myosin filaments.