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Diatom

Diatoms (Greek: διά (dia) = "through" τέμνειν (temnein) = "to cut", i.e., "cut in half") are a major group of eukaryotic algae, and are one of the most common types of phytoplankton. Most diatoms are unicellular, although some form chains or simple colonies. A characteristic feature of diatom cells is that they are encased within a unique cell wall made of silica. These walls show a wide diversity in form, some quite beautiful and ornate, but usually consist of two symmetrical sides with a split between them, hence the group name.


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Amoeba, Paramecium, Diatom

... this in the Botany forum, but thought it fell under Microbiology too. I have to describe the ecology of these three organisms (amoeba, Paramecium, diatom), telling where it is typically found, how it meets its nutritional needs using and explaining the correct terminology…autotrophic, heterotrophic,parasitic,photosynthetic, ...

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by Ayeshaa
Thu May 10, 2012 3:14 am
 
Forum: Microbiology
Topic: Amoeba, Paramecium, Diatom
Replies: 0
Views: 6677

Amoeba, Paramecium, Diatom

I have to describe the ecology of these three organisms (amoeba, Paramecium, diatom), telling where it is typically found, how it meets its nutritional needs using and explaining the correct terminology…autotrophic, heterotrophic,parasitic,photosynthetic, etc. ...

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by Ayeshaa
Tue May 08, 2012 2:31 pm
 
Forum: Botany Discussion
Topic: Amoeba, Paramecium, Diatom
Replies: 0
Views: 5719

What do you call a species only detected once in nature?

... in the wild" seems incorrect as nothing is known about the historical distribution. A biologist could not isolate a new species of diatom and then say that it is "critically endangered" simply because it had never been found previously. Yet I cannot find an appropriate ...

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by radiolarian
Mon Dec 26, 2011 10:05 am
 
Forum: Microbiology
Topic: What do you call a species only detected once in nature?
Replies: 9
Views: 3925

Diatom Digestion - Acidity Problem on Slide

Hello, at the moment I'm producing diatom slides during my work placement. The digestion process starts with the adding of HCL (get rid of salts and iron) then a wash in the centrifuge. Then sulphuric acid is added to get rid of organic matter, ...

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by casbiostudent
Thu Mar 10, 2011 9:55 am
 
Forum: Botany Discussion
Topic: Diatom Digestion - Acidity Problem on Slide
Replies: 0
Views: 1892

How are plantae protists and stramenopila (diatom) different

How are plantae protists and stramenopila (diatom) different and similar? The attempt at a solution: Diatoms: are a major group of eukaryotic algae (single celled algae), and are one of the most common types of phytoplankton. Most diatoms are ...

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by yahman
Fri Jan 22, 2010 5:26 pm
 
Forum: Microbiology
Topic: plantae protist and diatoms evolution
Replies: 3
Views: 12313
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