Question

Consider the following columns A and B in which some names of scientists are given in Column A and the discoveries made by them are given in Column B.

Column A	Column B
a. Alexander Fleming	i. Bacillus anthracis
b. Edward Jenner	ii. Fermentation
c. Louis Pasteur	iii. Lacobacillus
d. Robert Koch	iv. Penicillin
	v. Small pox vaccine

 

The correct match of the items of Column A with that of Column B is:

1. (a) - (iv), (b) - (i), (c) - (ii), (d) - (iii)
2. (a) - (iv), (b) - (v), (c) - (ii), (d) - (i)
3. (a) - (v), (b) - (iv), (c) - (iii), (d) - (i)
4. (a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)

Answer 1

Correct Answer - Option 2 : (a) - (iv), (b) - (v), (c) - (ii), (d) - (i)

The correct match is (a) - (iv), (b) - (v), (c) - (ii), (d) - (i)

Explanation:

Column A	Column B
a. Alexander Fleming	iv. Penicillin
b. Edward Jenner	v. Smallpox vaccine
c. Louis Pasteur	ii. Fermentation
d. Robert Koch	i. Bacillus anthracis

• Alexander Fleming - 
  • In 1929, Alexander Fleming was working on a culture of disease-causing bacteria.
  • Suddenly he found the spores of a little green mould in one of his culture plates.
  • He observed that the presence of mould prevented the growth of bacteria.
  • In fact, it also killed many of these bacteria. From this, the mould penicillin was prepared.
• Edward Jenner -
  • Edward Jenner discovered the vaccine for smallpox in 1798.
  • It is also considered to be the first vaccine ever. 
  • Small Pox is caused due to Variola Virus.
• Robert Köch  -
  • Robert Köch (1876) discovered the bacterium (Bacillus anthracis) which causes anthrax disease
• Louis Pasteur -
  • He discovered fermentation in 1857.