history Flashcards
Pure compounds isolated from plant and animal sources were used by Romans, Egyptians and Phoenicians.
Dyes
Dyes, which are pure compounds isolated from plant and animal sources were used by the Romans, Egyptians and phoenicians
Prehistoric ancient times
They created alcohol through fermentation of sugars
Prehistoric ancient times
Animal fat was converted Into soap
Prehistoric ancient times
He postulated the catalytic nature of fermentation, and identified lactic acid as the product of muscle activity
Berzelius (1837)
Studied tissues and proposed the unified cell theory
Matthias Schleiden and Theodor Schwann
Can be considered as one of the important developments in the biomedical history, since all functions of the body are now considered as the effects of cellular functions.
Cell theory
He developed the process of pasteurisation to kill microbes and to prevent spoilage of milk, beer and other food products.
Louis pasteur (1854-1864)
He proved that fermentation is caused by microorganisms
Louis pasteur (1854-1864)
Through his “germ theory of disease” he was also able to develop vaccines for cholera, anthrax and rabies
Louis Pasteur (1854-1864)
He discovered DNA (nuclein)
Friedrich Mischier (1869)
Proposed the term”enzyme”
Wilhelm Kuhne (1877)
He discovered alcoholic fermentation in cell-free yeast extract
Buchner (1897)
He proposed the pathway for fermentation
Carl Neuberg (1903-1912)
He first used the term “biochemistry”
Carl Neuberg (1903-1912)
He was a polished-born biochemist who proposed the “vitamin hypothesis”, in which the absence of particular substances (in trace amounts) in our diet can cause diseases such as beriberi, pellagra, scurvy and rickets.
Dr. Casimir Funk (1912)
He coined the term “vitamins” (vital amines or life amines) as vital factors in our diet
Dr. Casimir Funk (1912)
He discovered the citric acid cycle/Krebs cycle
Hans Adolf Krebs (1937)
The role of ATP in biological systems
Fritz Lippman (1940)
He discovered the base composition of DNA
Erwin Chargaff (1950-1953)
She discovered the molecular sturctur of DNA which is double helix
Rosalind Franklin
In 1953, they created the double helix or spiral staircase structure of DNA
James Watson and Francis Crick
He was the first person convicted of murder through DNA as an evidence. This led to the growth of forensic science.
Colin Pitchfork (1980s)
large molecules necessary for life, built from smaller organic molecules.
Biomolecules/biological macromolecules
they established through direct chemical analysis that the compounds
that are taken into the bloodstream are simple amino acids instead of more
complicated ones
Hopkins and Cole
showed how the breakdown of proteins in the gut results in amino acids, which
are eventually transformed into body proteins
Liebig
showed how the breakdown of proteins in the gut results in amino acids, which
are eventually transformed into body proteins
Liebig
