the cell theory living things

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, plants and animals, start their life with a single ..

Summary - According to the modified cell principle, new cells arise only from pre-existing cells. Cells transfer their genetic information only by way of cell division. The mode of cell division is largely the same in all living ..

There are two basic types of cells found in living organisms - the prokaryotic cells and the eukaryotic cells. This classification is based on three main features, namely; Organisation of biomembranes Nature of cytoplasmic organelles and Arrangement of the nu..

="left"> Robert Brown described the nucleus in plant cells. 1838-39 Sehleiden and Schwann proposed the cell theory. 1840 Purkioje proposed the term 'protoplasm’ to the contents of the cell. 1855 Virchow suggested that cells arise from pre-exis..

Living organisms have a definite organisation consisting of structural and functional units called cells that make the physical basis of life namely protoplasm. Living organisms obtain simple molecules from their surrounding environment, convert them into complex ..

Living cells constantly exchange energy and materials with their surrounding environment. The functioning of living cells depends upon the flow of energy and flow of informati..

The term growth is applied to several things and situations. It is quite common to hear people referring to growth of cities, the weeds, of tradition or even of indiscipline. You would have observed the growth of crystals or salt in the laboratory, but it is of non-living t..

Study of the compounds of carbon is organic chemistry. They form the basis of living organisms and the things around u..

These are made up of parenchymatous cells. They are thin walled and are living..

The term growth is applied to several things and situations. It is quite common to hear people referring to growth of cities, the weeds, of tradition or even of indiscipline. You would have observed the growth of crystals or salt in the laboratory, but it is of non-living ..