when did he discover this organelle mentioned above?
1890.
History of discovery and research
 Richard Altmann, in 1890, established them as cell organelles and called them "bioblasts".
the mitochrondria is the powerhouse of the cell Yes. who was the first to discover it? Richard Altmann. what exactly is it? It is a semi autonomous double-membrane-bound organelle found in most eukaryotic organisms. who is the above-mentioned person? A German pathologist and histologist.
1890 1890. 1890
Mitochondrion Mitochondrion Mitochondrion
History of discovery and research History of discovery and research History of discovery and research
, in 1890, established them as cell organelles and called them "bioblasts". Richard Altmann, in 1890, established them as cell organelles and called them "bioblasts". The term "mitochondria" was coined by Carl Benda in 1898. Richard Altmann, in 1890, established them as cell organelles and called them "bioblasts".
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Mitochondrion [SEP] History of discovery and research
The first observations of intracellular structures that probably represented mitochondria were published in the 1840s. Richard Altmann, in 1890, established them as cell organelles and called them "bioblasts". The term "mitochondria" was coined by Carl Benda in 1898. Leonor Michaelis discovered that Janus green can be used as a supravital stain for mitochondria in 1900. In 1904, Friedrich Meves, made the first recorded observation of mitochondria in plants in cells of the white waterlily, "Nymphaea alba" and in 1908, along with Claudius Regaud, suggested that they contain proteins and lipids. Benjamin F. Kingsbury, in 1912, first related them with cell respiration, but almost exclusively based on morphological observations.