Question

Match the scientists and their contribution given in column I and II correctly.

Scientists	Contribution
(A) Leeuwenhoek	(p) Enzyme
(B) Buckner	(q) Microtome
(C) Waksman	(r) Streptomycin
(D) W. His	(s) Compound microscope
	(t) Single lens high power microscope

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

Answer 1

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

Antonie van Leeuwenhoek developed an interest in lens making and he was the first to observe and describe single-celled organisms using his handcrafted microscopes.
Edward Buchner was awarded Nobel Prize for his work on the cell-free extract of yeast cells and discovered enzymes. He named the enzyme that brought about the fermentation of sucrose as 'zymase'.
Selman Waksman is recognised as the discoverer of streptomycin.
Wilhelm His was an anatomist, who invented the microtome.
Thus, the correct answer is option A.