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Nov 21, 2023 · Robert Brown contributed to the cell theory through his detailed description of the plant cell nuclei. He also coined the term ''nucleus,'' which scientists still use today.
His contributions include one of the earliest detailed descriptions of the cell nucleus and cytoplasmic streaming; the observation of Brownian motion; early work on plant pollination and fertilisation, including being the first to recognise the fundamental difference between gymnosperms and angiosperms; and some of the earliest studies in palyno...
- Botany
- Brownian motion, Prodromus Florae Novae Hollandiae et Insulae Van Diemen
In 1831, Scottish botanist Robert Brown (1773–1858) was the first to describe observations of nuclei, which he observed in plant cells. Then, in the early 1880s, German botanist Andreas Schimper (1856–1901) was the first to describe the chloroplasts of plant cells, identifying their role in starch formation during photosynthesis and noting ...
The Scottish botanist Robert Brown (1773– 1858) was the first to recognize the nucleus (a term that he introduced) as an essential constituent of living cells (1831). In the leaves of orchids...
- Paolo Mazzarello
- 1999
Jul 13, 1999 · Abstract. It was Robert Brown who brought botany into the mainstream of developmental biology, integrating plant physiology, cell biology, biochemistry and molecular biology into a holistic view of plant growth.
- Edward C. Cocking
- 2003
Schwann defined a cell as having three essential elements — a nucleus, a fluid content and a wall — even if no wall or membrane could actually be seen. His most important contribution was to propose a general cell theory
Robert Brown • In 1827, utilizing a very simple microscope, observed active molecules (Brownian motion) • In 1831, observed an opaque spot in plant (Orchid) cells which he named the nucleus (Latin for kernel) Matthias Schleiden: 1838 • Nucleus the most important structure in the cell—the unit from which the rest was formed
