Cell Membrane Structure Labeled. Structure and components of a human cell: Is labeled d movement of the small molecules from left to right across the membrane.

Body cells can be categorized into about 300 types, such as neurons, epithelial cells, muscle cells, and red bloodcells each type of cell has a special structure for carrying out particular functions although these cells differ in size, shape, and function. Cell membrane is made up of lipids and proteins and forms a barrier between the extracellular liquid bathing all cells on the exterior and the cell organelles floating in the cell’s cytoplasm. The structure labeled b in the diagram is an example of a(n).

It comprises proteins, polysaccharides and cellulose.

The cell membrane is the outer coating of the cell and contains the cytoplasm, substances within it and the organelle. Cell membrane are proteins and lipids • membrane proteins and lipids are arranged in a particular fashion, both contributing to containing the cell and to selectively allowing or blocking the traffic of certain substances through the cell • such arrangement of molecules provides fluidity to the cell membrane To control the activities within the cell. Consists of three layers of which the inner two layers are made of pectin, and the outer layer is composed of cellulose.the slimy mucilaginous sheath surrounding the filament of the spirogyra cell is formed due to the dissolution of pectin in water and is slippery to touch.;