2012年高考生物常用111条知识点总结（In 2012, 111 knowledge points of biology were summarized）.doc

2012年高考生物常用111条知识点总结（In 2012, 111 knowledge points of biology were summarized） 1. The organism has a common material basis and structural basis. 2. Cell is the basic unit of structure and function of the organism; The cell is the basic unit of all plant and animal structure. Viruses have no cell structure. Metabolism is the basis of all life activities of the organism. 4. Organisms have stress and can adapt to their surroundings. 5. The characteristics of biological heredity and variation enable species to remain basically stable and evolve continuously. 6. Organisms can adapt to a certain environment and can affect the environment. 7, the chemical elements of the organism in inorganic nature can be found, not a chemical element is unique to biology, the fact that biological and non biological unity. There are also differences between the biological and non-biological worlds. 9. Sugar is the main energy substance of cells, and is the main energy material for life activities. All life activities require protein. Nucleic acid is the genetic material of all living things. 12 no one compound, composition of living organisms can be independently completed a certain kind of life activity, while only organically organize these compounds in a certain way, to show the cell and organisms life phenomenon. Cells are the basic form of these substances. Life on earth, except for viruses, all organisms are made up of cells. The structural features of the cell membrane that have certain mobility characteristics are selected through the feature of sex. Cell wall has support and protective effect on plant cells. Mitochondria are the main sites for aerobic respiration of living cells. The ribosome is the place where amino acids are synthesized into proteins. Chromatin and chromosomes are two forms of the same substance in cells in different periods. The nucleus is the place where the genetic material is stored and copied, which is the control center of cell genetic characteristics and