Q.80 Match the scientists to their area of major contribution
| Scientists | Area of major contribution |
|---|---|
| (i) Antonie van Leeuwenhoek | (p) Taxonomy |
| (ii) Carl Linnaeus | (q) Antibiotic agents |
| (iii) Louis Pasteur | (r) Vaccination |
| (iv) Sir Alexander Fleming | (s) Microscopy |
- (A) (i)-(p), (ii)-(q), (iii)-(r), (iv)-(s)
- (B) (i)-(s), (ii)-(p), (iii)-(q), (iv)-(r)
- (C) (i)-(q), (ii)-(s), (iii)-(r), (iv)-(p)
- (D) (i)-(p), (ii)-(q), (iii)-(s), (iv)-(r)
The correct answer is option (B): (i)-(s), (ii)-(p), (iii)-(r), (iv)-(q).
Antonie van Leeuwenhoek pioneered microscopy, Carl Linnaeus established taxonomy, Louis Pasteur advanced vaccination, and Alexander Fleming discovered antibiotic agents.
Scientist Contributions
Antonie van Leeuwenhoek built simple microscopes magnifying up to 500 times and first observed bacteria, protozoa, and spermatozoa, founding microbiology.
Carl Linnaeus developed binomial nomenclature and hierarchical classification in Systema Naturae, standardizing taxonomy for plants and animals.
Louis Pasteur created vaccines for anthrax, fowl cholera, and rabies using attenuated microbes, establishing principles of immunization.
Sir Alexander Fleming identified penicillin from Penicillium mold in 1928, launching the antibiotic era against bacterial infections.
Option Analysis
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(A) (i)-(p), (ii)-(q), (iii)-(r), (iv)-(s): Incorrect. Leeuwenhoek matches microscopy (s), not taxonomy (p); Linnaeus matches taxonomy (p), not antibiotics (q); Fleming matches antibiotics (q), not microscopy (s).
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(B) (i)-(s), (ii)-(p), (iii)-(r), (iv)-(q): Correct. Matches all: Leeuwenhoek-microscopy, Linnaeus-taxonomy, Pasteur-vaccination, Fleming-antibiotics.
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(C) (i)-(q), (ii)-(s), (iii)-(r), (iv)-(p): Incorrect. Leeuwenhoek not antibiotics (q); Linnaeus not microscopy (s); Fleming not taxonomy (p).
-
(D) (i)-(p), (ii)-(q), (iii)-(s), (iv)-(r): Incorrect. Leeuwenhoek not taxonomy (p); Linnaeus not antibiotics (q); Pasteur not microscopy (s); Fleming not vaccination (r).
Antonie van Leeuwenhoek, Carl Linnaeus, Louis Pasteur, and Sir Alexander Fleming transformed biology through their pioneering work in match scientists to major contributions. This CSIR NET-style question tests knowledge of their legacies in microscopy, taxonomy, vaccination, and antibiotics, essential for life sciences exams.
Leeuwenhoek’s Microscopy Breakthrough
Antonie van Leeuwenhoek crafted over 500 microscopes, observing “animalcules” like bacteria and protozoa, laying microbiology foundations. His 1670s discoveries refuted spontaneous generation.
Linnaeus and Taxonomy Revolution
Carl Linnaeus introduced binomial nomenclature in Systema Naturae (1735), creating genus-species naming for 12,000+ species and hierarchical taxa. Known as taxonomy’s father, his system endures.
Pasteur’s Vaccination Legacy
Louis Pasteur developed attenuated vaccines for fowl cholera (1879), anthrax (1881), and rabies (1885), proving germ theory and immunization. His rabies vaccine saved Joseph Meister.
Fleming’s Antibiotic Discovery
Sir Alexander Fleming found penicillin in 1928 from mold inhibiting bacteria, earning a 1945 Nobel and starting antibiotic therapy. It combated infections like pneumonia.
