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The cell was first discovered by Robert Hooke in 1665 using a microscope. The first cell theory is credited to the work of Theodor Schwann and Matthias Jakob Schleiden in the 1830s. In this theory the internal contents of cells were called protoplasm and described as a jelly-like substance, sometimes called living jelly.
Since the invention of the microscope in the seventeenth century it has been known that plant and animal tissue is composed of cells : the cell was discovered by Robert Hooke. The plant cell wall was easily visible even with these early microscopes but no similar barrier was visible on animal cells, though it stood to reason that one must exist.
Hooke's engine enabled the development of the eponymous law that was subsequently attributed to Boyle; [50] [f] Hooke had a particularly keen eye and was an adept mathematician, neither of which applied to Boyle.
Robert Hooke first coined the term in his book, Micrographia, where he compared the structure of cork cells viewed through his microscope to that of the small rooms (or monks' "cells") of a monastery. [2] Cell theory – The scientific theory which states that all organisms are composed of one or more cells. Vital functions of an organism occur ...
Robert Hooke's discovery of cells in 1665 led to the proposal of the cell theory. Initially it was believed that all cells contained a hard cell wall since only plant cells could be observed at the time. [9] Microscopists focused on the cell wall for well over 150 years until advances in microscopy were made.
Hooke most famously describes a fly's eye and a plant cell (where he coined that term because plant cells, which are walled, reminded him of the cells in a honeycomb [2]). Known for its spectacular copperplate of the miniature world, particularly its fold-out plates of insects, the text itself reinforces the tremendous power of the new microscope.
The frontispiece to Erasmus Darwin's evolution -themed poem The Temple of Nature shows a goddess pulling back the veil from nature (in the person of Artemis). Allegory and metaphor have often played an important role in the history of biology. Part of a series on Biology Science of life Index Outline Glossary History (timeline) Key components Cell theory Ecosystem Evolution Phylogeny ...
He coined the term cell (from Latin cellula, meaning "small room" [41]) in his book Micrographia (1665). [42] [40] 1839: Theodor Schwann [43] and Matthias Jakob Schleiden elucidated the principle that plants and animals are made of cells, concluding that cells are a common unit of structure and development, and thus founding the cell theory.