The bending movements of cilia and flagella
A)are associated with microtubules and kinesin
B)involve the alternate assembly and disassembly of actin filaments
C)are produced when dynein motors pull adjacent microtubule doublets past each other
D)involves dynein action on microfilaments
E)involves myosin action on intermediate filaments

Question

Quizplus · Accepted Answer

The bending movements of cilia and flagella are produced by the action of dynein motors on the microtubules. Specifically, dynein pulls adjacent microtubule doublets past each other, resulting in bending and movement of the microtubule structure. Microtubules and kinesin play a role in the organization and movement of the cilia and flagella, but they are not directly involved in the bending movements. Actin filaments, intermediate filaments, and myosin are not involved in the movement of cilia and flagella.

The Bending Movements of Cilia and Flagella