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Dictionary » M » Microorganism

Microorganism

Definition

noun, plural: microorganisms

An organism that is microscopic or submicroscopic, which means it is too small to be seen by the unaided human eye.


Supplement

Microorganisms were first observed by Anton van Leeuwenhoek in 1675 using a microscope of his own design.

Examples of microorganisms include bacteria, fungi, archaea, and protists. Viruses and prions, although microscopic, are not considered microorganisms by others because they are generally regarded as non-living.


Word origin: Gk: comb. form repr. mīkrós small + organism > organ: Gk órganon implement, tool, bodily organ.

Related forms: microorganic, microoganismal (adjective).

Compare: macroorganism.
See also: organism, microbiology.


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Limit of e.coli on dried leaves

... and will vary upon the dryness of the leaves. it should be of low number as you have mentioned. I don't know about the E. coli only, but any microorganism you will rarely find in dry conditions. E. coli is an enteric and is motile. hence it will require a liquid medium, hence dry places you ...

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by greatmicrobiologist
Mon Sep 12, 2011 12:39 pm
 
Forum: Microbiology
Topic: Limit of e.coli on dried leaves
Replies: 1
Views: 181

Sterlization by Bleach, Water Purification Tablets

... my tools sterile, I have a plastic measuring spoon that I need to handle microwaved nutrient agar with, but I believe there may be bacteria and microorganism on it already, would it be wise to dip the spoon in some freshly poured bleach and let it dry and keep away from air movement for 5-15 ...

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by AaronEax123
Thu Aug 18, 2011 9:12 pm
 
Forum: Microbiology
Topic: Sterlization by Bleach, Water Purification Tablets
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Re: Any SOLID arguments against evolution?

Hi Canalon, What you say is all good and well and I will agree for most part. However, first part of your example “whenever one isolate a new microorganism, it can be predicted that it will have a DNA, and a short analysis will allow to determine if it is eukaryote or prokaryote”- has nothing ...

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by Cat
Mon Apr 18, 2011 7:31 pm
 
Forum: Evolution
Topic: Any SOLID arguments against evolution?
Replies: 213
Views: 239496

Any SOLID arguments against evolution?

... However it allows scientists to make predictions about what is currently unknown based on what we know. For example whenever one isolate a new microorganism, it can be predicted that it will have a DNA, and a short analysis will allow to determine if it is eukaryote or prokaryote, and then ...

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by canalon
Mon Apr 18, 2011 3:15 pm
 
Forum: Evolution
Topic: Any SOLID arguments against evolution?
Replies: 213
Views: 239496

bioremediation mechanisms

In the environment, there are plants and microorganism that can take up chemical that are potentially harmful to human. Using them in their biochemistry pathway and the end product become something harmless to human, so they are not holding or ...

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by magicsiew
Thu Dec 30, 2010 4:31 am
 
Forum: Botany Discussion
Topic: bioremediation mechanisms
Replies: 3
Views: 508
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