Final answer:
The plasma membrane is important in ciliary or flagellar function as both are extensions of the membrane and essential for cellular locomotion and various biological processes.
Step-by-step explanation:
No, the plasma membrane is crucial in ciliary or flagellar function. Both cilia and flagella are extensions of the plasma membrane that play a significant role in cellular locomotion and other important biological processes. The Fluid Mosaic Model describes the plasma membrane as a flexible layer that is embedded with proteins that can assist substances in crossing the membrane. Cilia are numerous and short hair-like structures that can move substances along the cell's outer surface or aid in cell locomotion, such as in the respiratory tract and Fallopian tubes, respectively. Flagella are fewer in number and longer, used by cells like sperm or single-celled organisms like Euglena to propel themselves. Both structures are integral to the function and biology of the cell, extending from and being a part of the plasma membrane as they perform these vital roles.