The Cell discoveries and Cell Theory Flashcards
s the basic structural, functional, and biological unit of all known living organisms.
cella, meaning “small room”
is the smallest unit of life that can replicate independently, and cells are often called the “building blocks of life”.
cell
is the historic scientific theory, now universally accepted, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells.
cell theory
are the basic unit of structure in all organisms and also the basic unit of reproduction.
cell
(July 18, 1635–March 3, 1703)
First coined the term “cells”
Discovers cells in cork, then in living plant tissue using an early compound microscope. He coined the term cell (from Latin cella, meaning “small room”).
robert hooke
(24 October 1632 – 26 August 1723)
Dutch scientist
Teaches himself to make lenses leading to the invention of his own basic optical microscopes. Using his microscope, he was able to draw protozoa, such as Vorticella from rain water, and bacteria from his own mouth.
Anton van Leeuwenhoek
A Dutch Naturalist who was an expert in grinding lenses and the one who discovered the tiny living organisms which he called “animalcules” from the drop of rain water. These animalcules are known as bacteria. Through his experiments, he was the first to relatively determine their size.
Anton van Leeuwenhoek
Most of the “animalcules” are now referred to as unicellular organisms, although he observed multicellular organisms in pond water. He was also the first to document microscopic observations of muscle fibers, bacteria, spermatozoa, red blood cells, crystals in gouty tophi, and blood flow in capillaries.
Anton van Leeuwenhoek
Scottish botanist
Identified nuclei in plant cells.
Discovered the nucleus of the cell
Introduced the phenomenon called Brownian movement.
Robert Brown
(5 April 1801 – 8 April 1860)
was a French biologist born in Tours.
Discovered the a semi-transparent living substance known as Sarcode, in which later on was changed in protoplasm, the colorless materials comprising the living part of the cell.
Felix Dujardin
(5 April 1804 - 23 June 1881 aged 77)
Was a German botanist and co-founder of cell theory, along with Theodor Schwann and Rudolf Virchow.
He proposed on his studies about the entire parts of the plant and concluded that all plants are made out of cell.
Matthias Jakob Schleiden
(7 December 1810 – 11 January 1882)
Was a German physician and physiologist. His most significant contribution to biology is considered to be the extension of cell theory to animals.
Theodor Schwann
French physiologist
Suggested that the cell is not only a structural unit of life but also a physiological one.
Wrote that all animal and plant tissues were aggregates of globular cells.
Henri Joachim Dutrochet
Polish scientist
Disputed Schleiden’s hypothesis on the formation cells and claimed that cells arise from pre-existing cells through cell division.
His major contribution to cell theory was the evidence that new animal cells arise by binary fission of pre-existing cells.
Robert Remak
(13 October 1821 – 5 September 1902)
Polish scientist
Father of Modern Pathology
Stated that new cells come from pre-existing cells by cell division.
Latin Phrase “ Omnis cellula e cellula” in his essay Cell Pathology
His work became the main foundation of the Cell theory
Rudolf Virchow
All living organisms are composed of one or more cells.
The cell is the basic unit of structure and organization in organisms.
Cells arise from pre-existing cells.
three tenets to the cell theory
All living organisms are composed of trillions of cell in their body.
Cell is fundamental and building blocks of all living organisms.
Cells come from the other cells by cell division.
The cell consists of genetic material which is passed from generation up to the last generation.
All cells are made up of the same in chemical composition.
Modern Cell Theory
