Which of the Following Describes Actin and Myosin

Question

Which of the following describes actin and myosin?
A) Considered contractile proteins
B) Form force-generating cross-bridges
C) Sliding filaments
D) All of the above

Accepted Answer

Actin and myosin are considered contractile proteins because they are responsible for muscle contraction. They form force-generating cross-bridges between the actin and myosin filaments, helping to slide the filaments past each other and generate force. Therefore, all of the above choices are correct.