Question

Select the correct statement from the following.
1) M - line is present in middle of I-band
2) Sarcomere is bisected by Z-line
3) Contraction of a muscle fibre takes place by
the sliding of the thin filaments over the
thick filaments
4) Actin filaments are thicker as compared to
myosin filaments
Select the correct statement from the following.
1) M - line is present in middle of I-band
2) Sarcomere is bisected by Z-line
3) Contraction of a muscle fibre takes place by
the sliding of the thin filaments over the
thick filaments
4) Actin filaments are thicker as compared to
myosin filaments

Answer 1

Answer:

Muscle cells are specialized for contraction. Muscles allow for motions such as walking, and they also facilitate bodily processes such as respiration and digestion. The body contains three types of muscle tissue: skeletal muscle, cardiac muscle, and smooth muscle (Figure 19.33).