Question

Which of the following structures is correctly organized from large to small? O Muscle, Muscle fibre, Myofibril, Sarcomere, Filaments O Muscle, Muscle fibre, Sarcomere, Filaments, Myofibril O Muscle, Filaments, Myofibrils, Sarcomere, Muscle fibre O Filaments, Sarcomere, Myofibril, Muscle fibre, Muscle. Option 1: O Muscle, Muscle fibre, Myofibril, Sarcomere, Filaments Option 2: O Muscle, Muscle fibre, Sarcomere, Filaments, Myofibril Option 3: O Muscle, Filaments, Myofibrils, Sarcomere, Muscle fibre Option 4: O Filaments, Sarcomere, Myofibril, Muscle fibre, Muscle.

Answer 1

The correct order is muscle, muscle fibre, sarcomere, filaments, myofibril.

Step-by-step explanation:

The correct answer is option 2: Muscle, Muscle fibre, Sarcomere, Filaments, Myofibril. This order represents the hierarchical organization of muscle structures from large to small.

A muscle is made up of many muscle fibers, which are long, cylindrical cells. Each muscle fiber consists of bundled myofibrils, which are the contractile organelles of the cell.

Within each myofibril, you'll find repeating units called sarcomeres. Sarcomeres contain various protein filaments like actin and myosin, which are responsible for muscle contraction.

Learn more about Muscle structure