Karl Wilhelm von Nägeli
Karl Wilhelm von Nägeli
1817-1891
Swiss botanist who studied plant cells. Nägeli identified structures later to be called chromosomes. He observed cell division and osmosis in algae. Nägeli introduced the idea of a group of plant cells, the meristem, always capable of division. He and Hugo von Mohl distinguished the wall of a plant cell from the interior. Nägeli unfortunately rejected a paper sent to him by Gregor Mendel that would later become the material for Mendel's laws of inheritance.
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Kupffer cells , Kupffer cells Specialized macrophages that dispose of old blood cells and particulate matter. Kupffer cells, named after Karl Wilhelm von Kupffer (18… Protoplast , pro·to·plast / ˈprōtəˌplast/ • n. chiefly Bot. the protoplasm of a living plant or bacterial cell whose cell wall has been removed. DERIVATIVES: pro·… Cell Wall , With very few exceptions, all cells are enveloped by an extracellular matrix composed of proteins , carbohydrates , and other substances. Owing to it… Meristems , Plants have the impressive abilities to reproduce asexually and regenerate damaged parts. The secret to these abilities lies within a tissue type cal… Cells , Cells
Plants are multicellular organisms composed of millions of plant cells. Although individual cells may differ greatly from each other in mature… Haploid , hap·loid / ˈhapˌloid/ Genetics • adj. (of a cell or nucleus) having a single set of unpaired chromosomes. Compare with diploid. ∎ (of an organism or…
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Karl Wilhelm von Nägeli