Cell Theory

Cell theory- all organisms are made of one or more cells and the products of those cells. An organism may be a single cell, such as a bacterium, or many cells organized to function together as in an animal or plant. In many celled organisms, there may be intercellular material made by the cells. All cells carry on life activities. The life activities of a many celled organism are the combined result of the activities …

…Hypotonic solution-Any solution which has a lower osmotic pressure than another solution (that is, has a lower concentration of solutes than another solution). A solution which contains a lower concentration of solutes than the cells that it is bathing, so that water flows into the cells from the solution by osmosis. A hypotonic solution is the opposite of a hypertonic solution. isosmotic solution : a solution having the same osmotic pressure as blood [syn: isotonic solution]