Question

Match the scientists and their contribution given in the columns.

Scientists	Contribution
A. Pasteur	p. Beer and butter milk are products of fermentation by yeast
B. Hansen	q. Diastase
C. Payen and Persoz	r. Purified rennet
D. Waksman	s. Streptomycin

• A. A - p, B - q, C - r, D - s
• B. A - p, B - r, C - q, D - s
• C. A - p, B - s, C - r, D - q
• D. A - s, B - r, C - q, D - p

Answer 1

The correct option is B A - p, B - r, C - q, D - s

The scientists listed in question had made some of the most outstanding contributions.
Pasteur discovered fermentation. The biochemical process carried out by yeast which results in fermented products like beer and butter milk.
The first commercial standardized rennet was introduced by Chr Hansen in 1874. At that time, rudimentary methods were used to extract animal rennet from calves or adult bovine stomachs.
Diastase was the first enzyme discovered. It was extracted from malt solution in 1833 by Anselme Payen and Jean-Franois Persoz, chemists at a French sugar factory.
Waksman was awarded the Nobel Prize in Physiology or Medicine in recognition for his discovery of streptomycin, the first antibiotic active against tuberculosis.