Cell Principle
Topic :-3,from Cell, the unit of life. The modern cell Theory is called cell Principle. It includes following parts___:- cell is the basic structural and functional unit of life. cell is the smallest unit in which life can exist. All living beings are composed of cell. Each cell comsistd of protoplasmic mass containing a nucleus. A cell is able to maintain its vitality and individuality. cell always arise from prexisting cells. All present day cell have a common origin. No organism can have activity without cells. Bascially cell are Totipotent unless and until they are specialised. CELL THEORY IS A GENERALISATION. It is having many exceptions. Viruses donot show cell structure but they show some living properties. In some organisms body is not diffrentiated into cells;and it consist of a chamber of nuclei as in Mucor and Rhizopus fungi. Protozoa shows subcellular diffrentiation for different work. There are many cell which donot have true nucleus (Prokar...
