- Thin peptidoglycan layer in the periplasmic space - large periplasmic space
- thick peptidoglycan layer, external to plasma membrane.
Cell membrane
Plasma Proteins
Very dynamic and capable of reorganization. Helps cells maintain their shape
Bacterial cell wall
•Structural support •Transport of molecules •Receptors for hormones •Surface antigens
Gram positive
- identifies bacteria as either gram stain positive or negative
Cell wall
Cytoskeleton
- a fluid mosaic made up of three types of organic molecules. - a semipermeable membrane surrounding the cytoplasm of a cell
Helps maintain the shape of a cell externally and protects it from physical or chemical damage. A rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria.
A dense gelatinous matrix composed of 70% to 80% water. the site for most of the enzymatic reactions and metabolic activity of the cell.
Cytoplasm
Gram negative
