Cell theory

Scientists as soon as thought the life spontaneously occurred from nonliving things. Many thanks to experimentation and also the innovation of the microscope, that is now recognized that life comes from preexisting life and that cell come native preexisting cells.

You are watching: What caused scientists to discover the existence of cells


Micrographia Cover

English scientist Robert Hooke published Micrographia in 1665. In it, he illustrated the smallest finish parts of one organism, which that called cells.

Photograph by Universal background Archive/Universal Images team via Getty Images


In 1665, Robert Hooke published Micrographia, a book filled with drawings and also descriptions the the biology he regarded under the recently invented microscope. The development of the microscope caused the exploration of the cabinet by Hooke. When looking at cork, Hooke observed box-shaped structures, i m sorry he referred to as “cells” together they reminded him of the cells, or rooms, in monasteries. This exploration led come the breakthrough of the timeless cell theory.The classic cell concept was proposed by Theodor Schwann in 1839. There room three components to this theory. The first part says that every organisms room made of cells. The second component states the cells room the straightforward units of life. These components were based on a conclusion made by Schwann and also Matthias Schleiden in 1838, after ~ comparing their monitorings of plant and animal cells. The third part, which asserts the cells come from preexisting cells that have actually multiplied, was described by Rudolf Virchow in 1858, as soon as he proclaimed omnis cellula e cellula (all cell come indigenous cells).Since the development of classical cell theory, an innovation has improved, permitting for much more detailed monitorings that have actually led to new discoveries about cells. This findings brought about the development of the contemporary cell theory, which has three key additions: first, the DNA is passed between cells throughout cell division; second, the the cells of every organisms within a comparable species are mainly the same, both structurally and chemically; and also finally, that energy flow occurs within cells.

See more: What Does The Blinking On And Off Of Runway Lights Means, Airfield Driving Flashcards


English scientist Robert Hookepublished Micrographia in 1665. In it, heillustratedthe smallest complete parts of one organism,which that calledcells.