The Bending Movements of Cilia and Flagella

Multiple Choice

The bending movements of cilia and flagella

A) are accomplished by alternate solation and gelation of the cytosol.
B) involve the alternate assembly and disassembly of actin filaments.
C) are produced by the sliding of adjacent microtubule doublets past each other.
D) are important in providing motility for many organisms but are not of any use in humans.
E) none of these answers.