The Microscopic Marvels

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Questions and Answers

When did the scientific study of microorganisms begin?

The scientific study of microorganisms began in the 1670s.

What is a microorganism?

A microorganism is an organism of microscopic size, which may exist in its single-celled form or as a colony of cells.

What did Louis Pasteur discover about microorganisms?

Louis Pasteur discovered that microorganisms caused food spoilage.

Who is credited with the observation of microorganisms under the microscope?

Anton van Leeuwenhoek is credited with the observation of microorganisms under the microscope. Signup and view all the answers

Which domains of life contain microorganisms?

The domains Archaea and Bacteria contain microorganisms. Signup and view all the answers

Match the following scientists with their contributions to the study of microorganisms:

Anton van Leeuwenhoek = Observation of microorganisms under the microscope Louis Pasteur = Found that microorganisms caused food spoilage Robert Koch = Discovered that microorganisms caused diseases like tuberculosis, cholera, diphtheria, and anthrax Signup and view all the answers

Match the following domains of life with their characteristics:

Archaea = Contains only microorganisms Bacteria = Contains only microorganisms Eukaryota = Includes all multicellular organisms as well as many unicellular protists and protozoans that are microbes Signup and view all the answers

Match the following theories to their related facts:

Existence of unseen microbial life = Suspected from ancient times, such as in Jain scriptures from sixth century BC India Theory of spontaneous generation = Debunked by Louis Pasteur's finding that microorganisms caused food spoilage Signup and view all the answers

Match the following diseases with the cause discovered by Robert Koch:

Tuberculosis = Caused by microorganisms Cholera = Caused by microorganisms Diphtheria = Caused by microorganisms Anthrax = Caused by microorganisms Signup and view all the answers

Match the following terms to their definitions:

Microorganism = An organism of microscopic size, which may exist in its single-celled form or as a colony of cells Microbe = Another term for microorganism Signup and view all the answers

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