What structural feature do cilia and flagella have in common?

What structural feature do cilia and flagella have in common?

Despite their different names, flagella and cilia have the same axoneme structure, including nine doublet microtubules arranged in a circle around two central singlet microtubules (see Figure 19-28).

Do cells have a support structure within the cytoplasm called the cytoskeleton?

Cells have a support structure within the cytoplasm called the cytoskeleton. 17. The exoskeleton is composed of thin, fibrous elements that form a framework for the cell.

What is composed of thin fibrous elements that form a framework for the cell?

Cells have a support structure within the cytoplasm called the cytoskeleton. The exoskeleton is composed of thin, fibrous elements that form a framework for the cell. Microtubules of the cytoskeleton are thin, hollow cylinders made of protein.

Which structure controls the movement of molecules in and out of a cell?

cell membrane

Are flagella more numerous than cilia?

Cilia and flagella are cell surface structures that are adapted for respiration. Flagella are short, numerous hairlike projections from the plasma membrane. Flagella are longer and more numerous than cilia. In multicellular organisms, cilia and flagella are the major means of locomotion.

What is the function of flagella?

Flagellum is primarily a motility organelle that enables movement and chemotaxis. Bacteria can have one flagellum or several, and they can be either polar (one or several flagella at one spot) or peritrichous (several flagella all over the bacterium).

How do flagella and cilia move?

The primary purpose of cilia in mammalian cells is to move fluid, mucous, or cells over their surface. Cilia and flagella have the same internal structure. The major difference is in their length. Cilia and flagella move because of the interactions of a set of microtubules inside.

How does flagella help a cell move?

Bacterial flagella are helically shaped structures containing the protein flagellin. The base of the flagellum (the hook) near the cell surface is attached to the basal body enclosed in the cell envelope. The flagellum rotates in a clockwise or counterclockwise direction, in a motion similar to that of a propeller.