the cell theory living things


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Cell Cloning
illustration of cloning process in sheep . All these cells in a clone are derived from a single parent cell by mitotic divisions. The clones may be isolated and propagated. Most micro-organisms, both prokaryotic and eukaryotic, which live in nature as single cells, can be easily cloned in vitro, usi..
Discovery of the Cell
Subsequently, other scientists including Anton Von Leeuwenhock observed such structures in various other organisms. With the improvement in microscopes, more and more observations were made and the fact that living organisms are composed of cells was clearly establish..
Active Potassium Theory (Levitt 1974)
active potassium theory during  day light It was observed by Fujino (1967) that opening of stomata occurs due to the influx of K + ions into the guard cells. The source of K + ions are the neighbouring subsidiary and epidermal cells, there by increasing the concentration from 50mM to 300mM in guard cells. ..
Cell As A Unit Of Life
All living organisms are composed of structural and functional units called cells. The body of a living organism may be composed of a single cell - as in unicellular organisms or many cells - as in multicellular organisms. The number of c..
Prokaryotic and Eukaryotic Cells
There are two basic types of cells found in living organisms - the prokaryotic cells and the eukaryotic cells..
Why are Organisms Composed of Cells?
All living organisms are composed of structural and functional units called cells. The body of a living organism may be composed of a single cell - as in unicellular organisms or many cells - as in multicellular organisms. The number of cellsh..
Cell Membrane (Plasma membrane)
It is present in both plant and animal cells. It is living, elastic and made of proteins and lipids (fats). Its function is to provide a mechanical barrier for the protection of the inner cell contents and to regulate the movement of molecules in and out of the c..
Cell - A Unit of Life
All living organisms, whether plants or animals, are made up of microscopic units called cells. The cell occupies the same central position in biology as the atom in the physical science..
Photo Voltaic Cell
Photo voltaic cell Photo Voltaic Cell..
Cell - A Unit of Life
Cells of onion peelMulticellular lifeform All living organisms, whether plants or animals, are made up of microscopic units called cells. The cell occupies the same central position in biology as the atom in the physical sciences. All living beings,..
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