Organelle: a membrane-bound structure in a cell that’s provides a specific function. Examples: mitochondria, chloroplast, nucleus
Cytoskeleton: microfibers found in the cytoplasm of a cell that’s provides shape and structure. Examples: tubules, filaments
Prokaryotic: a cell that lacks a nucleus, simple flagella are described as prokaryotic. Examples: Bacteria and Archaea
Plasmalemma: also called plasma membrane, protects the cell from its surroundings and regulates molecules that travels in and out of cells through channels. Example: plasma membrane, phospholipid bilayer