Final answer:
The terms "fluid" and "mosaic" in the fluid mosaic model refer to the fluidity and mosaic-like composition of the plasma membrane, respectively.
Step-by-step explanation:
The terms "fluid" and "mosaic" in the fluid mosaic model of membrane structure refer to the fluidity and mosaic-like composition of the plasma membrane, respectively.
The fluidity refers to the ability of membrane components to move fluidly within the plane of the membrane. This fluidity allows for the rapid diffusion and lateral movement of phospholipid molecules and embedded proteins, which is essential for the membrane's functions.
The mosaic-like composition refers to the diverse array of lipid and protein components present in the membrane. These components form a mosaic pattern, similar to separate, multicolored tiles in a mosaic picture, giving the membrane its unique structure.