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Oxygen-15

oxygen-15

A cyclotron-produced, positron-emitting radioisotope of oxygen with a half-life of 122.2 seconds; used in studies of respiratory function and in positron emission tomography.


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Re:

... with someone else isn't very helpful either... I think you can use a test, where semi-solid agar taken in test tube, which will a gradation of oxygen concentration. Surface have normal oxygen concentration and when we go downwards its concentration gradualy decreases. At near bottom there is ...

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by sosippus
Wed Sep 24, 2014 7:44 pm
 
Forum: Microbiology
Topic: Oxygen requirements of eukaryotes
Replies: 3
Views: 339

Oxygen requirements of eukaryotes

I think you can use a test, where semi-solid agar taken in test tube, which will a gradation of oxygen concentration. Surface have normal oxygen concentration and when we go downwards its concentration gradualy decreases. At near bottom there is no oxygen at all. If we ...

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by josem
Wed Sep 24, 2014 5:28 pm
 
Forum: Microbiology
Topic: Oxygen requirements of eukaryotes
Replies: 3
Views: 339

Oxygen requirements of eukaryotes

Hi! Is any of you aware of any resources where I can find information about the oxygen requirement for growth of eukaryotes? As an example, say I'd like to know whether Candida dubliniensis, Lodderomyces elongisporus or Encephalitozoon intestinalis are aerobes, ...

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by sosippus
Tue Sep 16, 2014 10:22 am
 
Forum: Microbiology
Topic: Oxygen requirements of eukaryotes
Replies: 3
Views: 339

Electron transport chain

The electrons are passed through molecules in the membrane, so the oxygen is not much accessible to them.

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by JackBean
Wed Jun 25, 2014 12:19 pm
 
Forum: Cell Biology
Topic: Electron transport chain
Replies: 3
Views: 862

Electron transport chain

Electrons are finally accepted by oxygen at the end of the electron transport chain. Is oxygen is accessible to the electrons in intermediate electron carriers? If so why electron is not accepted by oxygen at intermediate steps?

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by josem
Sun Jun 22, 2014 1:28 am
 
Forum: Cell Biology
Topic: Electron transport chain
Replies: 3
Views: 862
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