who was he?
He as a German pathologist and histologist from Deutsch Eylau in the Province of Prussia.
Richard Altmann
Richard Altmann (12 March 1852 – 8 December 1900) was a German pathologist and histologist from Deutsch Eylau in the Province of Prussia.

role of mitochondria and chloroplast in energy transduction UNANSWERABLE who or what is the above mentioned entity? It is a semi autonomous double-membrane-bound organelle found in most eukaryotic organisms what is its shape? UNANSWERABLE who discovered it? Richard Altmann
wiki:4418840
Richard Altmann [SEP] Introduction
He named the granules "bioblasts", and explained them as the elementary living units, having metabolic and genetic autonomy, in his 1890 book ""Die Elementarorganismen"" ("The Elementary Organism"). His explanation drew much skepticism and harsh criticism. Altmann's granules are now believed to be mitochondria.