Final answer:
The axoneme structure in cilia and flagella consists of components such as the A and B tubules, nexin, and radial spokes. The A tubules generate force to slide microtubules past one another, allowing for bending of the axoneme. The microtubules can be complete 13 protofilament or incomplete 10-11 protofilament.
Step-by-step explanation:
The axoneme structure in cilia and flagella consists of several components with specific characteristics:
The A tubules and B tubules are parts of the doublets in the axoneme. The dynein arms attached to the A tubules generate force to slide the microtubules past one another, allowing for bending of the axoneme.
The nexin is a flexible protein that links adjacent doublets, providing stability to the axoneme.
The radial spokes project inward at each doublet, further stabilizing the structure.
The microtubules in the axoneme can be complete 13 protofilament microtubules or incomplete 10-11 protofilament microtubules.