Why Does Skeletal Muscle Have a Striated Appearance

Question

Why does skeletal muscle have a striated appearance?
A) dark color of myosin
B) dense array of microtubules
C) dense packing of ATP molecules
D) regular arrangement of myofibrils

Accepted Answer

Skeletal muscle has a striated appearance due to the regular arrangement of myofibrils, which are the contractile units of muscle cells. The myofibrils contain alternating light and dark bands called sarcomeres, which give the muscle its striped appearance.