Question

Name the scientist who reported the discovery of microorganisms
A. Antonie Van Leeuwenhoek
B. Robert Hooke
C. Carl Linnaeus
D. Zacharias Janssen

Answer 1

Hint:Microbes are creatures that are too small for the human eye to see. In order to detect differences in the types and shapes of microbes, such as bacteria, fungi, and protists, various microscopes are used. Microbes are small living organisms all over us that are discovered. In the soil, water, and the air, they reside in the human body as well.

Complete answer:
The Dutch microbiologist, Antonie van Leeuwenhoek was the first to observe bacteria and protozoa. His findings have helped to lay the groundwork for bacteriology and protozoology sciences. He possibly observed protozoa for the first time in 1674, and bacteria some years later. He was able to separate such "very small animalcules" from various sources, such as rainwater, pool and well water, and the human intestine and mouth. Robert Hooke first observed the cell and named it, in 1665. He noticed that it looked strikingly similar to the cellula or small rooms occupied by monks, thus deducing the name. However, as it looked under the microscope, what Hooke actually observed was the dead cell walls of plant cells (cork). The description of these cells by Hooke has been published in Micrographia.
Carl Linnaeus was a Swedish naturalist and researcher who was the first to establish principles for identifying natural species and genera of organisms and to create a standardized system for labeling them. He gave a system for binomial nomenclature. The first investigator to construct the compound microscope is widely believed to be Zacharias Janssen. The use of some sort of microscope has assisted every important field of science.
So, correct answer is option (A), Antonie Van Leeuwenhoek.

Note: There are seven types of microorganisms: archaea, bacteria, protozoa, fungi, algae, viruses, and multicellular animal parasites. Each type has a particular cellular structure, anatomy, mean locomotion, and reproduction. Microorganisms are helpful in generating oxygen, decomposing organic matter, supplying plant nutrients, and preserving human health, but others may be pathogenic and develop plant disease and in humans as well.