BIOL 1001 Chapter : Chapter 5 Notes
Document Summary
Cell membrane i usually outermost barrier of the cell. Biology chapter 5: cell membrane structure and function. It usually doesn"t act as a barrier to molecules. The cell wall is mainly for structural support and protection: an exception to this is found in cells which have a cell wall. Cell membrane usually regulates what enter and exits the cell: the plasma membrane contains the cell but still allows the cell to interact with the environment. Acts a barrier but not a perfect barrier. Important with organ transplants didn"t match up to the pattern of your proteins. Cell identification: membrane proteins provide a fingerprint for the cell type. Called cd receptors (cluster of differentiation: hiv binds to cell receptors that are rpesent on cells inside the body, but not present on skin cells. If someone rejects an organ it means the pattern of proteins on the dontated organ.
