Cell Membrane Definition Easy. Animal cells, which are the fundamental units of life in the animal kingdom, are eukaryotic cells. A semipermeable limiting layer of cell protoplasm consisting of a fluid phospholipid bilayer with intercalated proteins :
Cell wall definition, the definite boundary or wall that is part of the outer structure of certain cells, as a plant cell. The cell membrane separates the cell from the surrounding interstitial fluid, the main component of the extracellular fluid. The cell membrane is a thin membrane that encases the cytoplasm of the cell, and holds the cytoplasm (as well as the cell’s organelles) within it, separating the interior of the cell from the outside environment.
The cell membrane consists of a lipid bilayer that is semipermeable.
A 3d diagram of the cell membrane. This structure has two layers, and is represented in the diagram below. The definition of a cell. Sort of like the skin.