What is meant by the "fluid-mosaic" model of cell membrane structure?
The cell membrane consists of a double layer of phospholipids, with proteins floating in it. Phospholipids are a type of molecule with a phosphate head, and fatty tails, which form a double layer around the cell. The proteins sit within the membrane at intervals, which is why the cell membrane is a "mosaic". It is described as "fluid" because the proteins can move around within the membrane, by moving between the phospholipids.
HH
Related Biology A Level answers
All answers ▸What is a synapse and how is information passed through it?
Explain the process of synaptic transmission
"why has the amount of antibiotics in animal feeds gone down in recent times"
Effect of non-competitive inhibitor (on enzyme activity) on enzyme catalysed reaction