Which word best describes the structure of the cell membrane? alayered brigid cimpermeable dnonpolar?

The cell membrane is a thin,semi permeable barrier that surrounds and encloses the contents of a cell.Phospholipids form the basic structure of a cell membrane,called ''THE LIPID BILAYER.''Scatterd in the lipid bilayer are cholesterol molecules,which help to keep the membrane fluid consistent.Membrane proteins are important for transporting substances across the cell membrane.

An autotrophic protist - they can perform photosynthesis and mainly consist of unicellular algae. they can be divided into number of systematic group according to the shape of their cell and the type of photosynthetic pigments they use.