A myofibril is a cylindrical bundle of contractile myofilaments within the skeletal muscle cell. True or False

The statement is true.

Explanation:

The cells that make up the skeletal muscle are called muscle fibers or myofibril, they are long cylindrical structures surrounded by a plasma membrane called sarcolemma. Myofibrils are recognized as the "contractile elements" of muscles in vertebrate animals, they are composed of contractile filaments also known as myofilaments. They also have several types of proteins that give them elastic and retractable characteristics.

True

Explanation:

A myofibril also called muscle fibril found in muscle cells, it is composed of thick and thin filaments of protein Myosin and Actin respectively.