Match each term with its corresponding definition or description.
-Beadlike globular protein that makes up the thin myofilament

Question

Quizplus · Accepted Answer

Actin is the protein that makes up the thin myofilament in muscles.

Answer: D
 Tropomyosin is a protein that covers the active sites on actin molecules and prevents the binding of myosin during muscle relaxation.

Answer: F
 Myosin is the protein that makes up the thick myofilament in muscles and generates the force for muscle contraction.

Answer: I
 The sarcomere is the basic unit of muscle contraction and consists of overlapping thick and thin filaments.

Answer: J
 Troponin is a protein that binds to calcium ions and helps to remove the inhibitory action of tropomyosin on actin during muscle contraction.

Answer: K
 A motor unit is a single motor neuron and all the muscle fibers it innervates.

Match Each Term with Its Corresponding Definition or Description