history

Question 1

Pure compounds isolated from plant and animal sources were used by Romans, Egyptians and Phoenicians.

Answer 1

Dyes

Question 2

Dyes, which are pure compounds isolated from plant and animal sources were used by the Romans, Egyptians and phoenicians

Answer 2

Prehistoric ancient times

Question 3

They created alcohol through fermentation of sugars

Answer 3

Prehistoric ancient times

Question 4

Animal fat was converted Into soap

Answer 4

Prehistoric ancient times

Question 5

He postulated the catalytic nature of fermentation, and identified lactic acid as the product of muscle activity

Answer 5

Berzelius (1837)

Question 6

Studied tissues and proposed the unified cell theory

Answer 6

Matthias Schleiden and Theodor Schwann

Question 7

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.

Answer 7

Cell theory

Question 8

He developed the process of pasteurisation to kill microbes and to prevent spoilage of milk, beer and other food products.

Answer 8

Louis pasteur (1854-1864)

Question 9

He proved that fermentation is caused by microorganisms

Answer 9

Louis pasteur (1854-1864)

Question 10

Through his “germ theory of disease” he was also able to develop vaccines for cholera, anthrax and rabies

Answer 10

Louis Pasteur (1854-1864)

Question 11

He discovered DNA (nuclein)

Answer 11

Friedrich Mischier (1869)

Question 12

Proposed the term”enzyme”

Answer 12

Wilhelm Kuhne (1877)

Question 13

He discovered alcoholic fermentation in cell-free yeast extract

Answer 13

Buchner (1897)

Question 14

He proposed the pathway for fermentation

Answer 14

Carl Neuberg (1903-1912)

Question 15

He first used the term “biochemistry”

Answer 15

Carl Neuberg (1903-1912)

Question 16

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.

Answer 16

Dr. Casimir Funk (1912)

Question 17

He coined the term “vitamins” (vital amines or life amines) as vital factors in our diet

Answer 17

Dr. Casimir Funk (1912)

Question 18

He discovered the citric acid cycle/Krebs cycle

Answer 18

Hans Adolf Krebs (1937)

Question 19

The role of ATP in biological systems

Answer 19

Fritz Lippman (1940)

Question 20

He discovered the base composition of DNA

Answer 20

Erwin Chargaff (1950-1953)

Question 21

She discovered the molecular sturctur of DNA which is double helix

Answer 21

Rosalind Franklin

Question 22

In 1953, they created the double helix or spiral staircase structure of DNA

Answer 22

James Watson and Francis Crick

Question 23

He was the first person convicted of murder through DNA as an evidence. This led to the growth of forensic science.

Answer 23

Colin Pitchfork (1980s)

Question 24

large molecules necessary for life, built from smaller organic molecules.

Answer 24

Biomolecules/biological macromolecules

Question 25

they established through direct chemical analysis that the compounds that are taken into the bloodstream are simple amino acids instead of more complicated ones

Answer 25

Hopkins and Cole

Question 26

showed how the breakdown of proteins in the gut results in amino acids, which are eventually transformed into body proteins

Answer 26

Liebig

Question 27

showed how the breakdown of proteins in the gut results in amino acids, which are eventually transformed into body proteins

Answer 27

Liebig