BIOL 3090 : Cell Bio Test 1
Document Summary
All living things are composed of cells and their living products (schleiden and schwann german physiologists-1838) They"re made up of protein and nucleic acids. So according to the theory, they"re not alive. Omnis cellula e cellula (all cells come from cells). **before this, it was believed that cells formed from free-cell formation, similar to the way that ice crystals form (spontaneous generation). All living things are made up of cells. The cell is the structural and functional unit of all living things. All cells come from pre-existing cells by division (mitosis). Cells contain hereditary information, which is passed from cell to cell through division. All cells are basically the same in chemical composition. All energy flow (metabolism and biochemistry) occurs within the cell. The activity of the organism as a whole is the sum of the activities and interactions of essentially independent cell units. The cell: closest thing to an autonomous biological unit that exists.
