Microbiology is the study of :
Microbiology is the study of all living organisms that are too small to be visible with the naked eye. This includes bacteria, archaea, viruses, fungi, prions, protozoa and algae, collectively known as 'microbes'.
Leeuwenhoek observed in a drop of pond water :
Leeuwenhoek observed large number of living microorganisms in a drop of water when observed under microscope. These organisms are not visible by naked eyes
Pasteur discovered :
Budding in yeast is a asexual means of reproduction. Fermentation is the anaerobic respiration in which alcohol is produced. Both these process are discovered by Luis Pasteur.
Ivanovsky discovered virus from :
Ivanovsky, a Russian scientist, discovered virus while looking for the cause of tobacco mosaic disease using a filter for bacteria.
Scientist who discovered fermentation is
The microorganism which helps in fermentation is :
Fermentation is the process in which yeasts convert sugar into ethanol in the absence of oxygen. The fermentation process is used to produce alcoholic beverages.
Agents in infectious diseases responsible are called
There are five major types of infectious agents: bacteria, viruses, fungi, protozoa, and helminths. In addition, a new class of infectious agents, the prions, has recently been recognized. A brief review of the general characteristics of each of these agents and examples of some diseases they cause follows.
Which two words are synonyms?
Microorganism and microbe are two words having same meaning, very small organism that cannot be seen with naked eyes. So, microorganism and microbe are synonyms.
Germ theory of disease was established by :
The notion that diseases could be spread by “seed-like entities” was first described in the 1500’s by Girolamo Fracastoro and were categorized based on how they could be transmitted. Later, Agostino Bassi in the early 1800’s conducted a series of experiments which demonstrated that a disease afflicting silkworms at the time was caused by a parasite. Bassi theorized that disease in humans and animals was also caused by microorganisms. Bassi’s work served to influence Louis Pasteur, who is accredited with the germ theory of disease following his experiments demonstrating the relationship between microorganisms and disease.