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Dictionary » O » Oxygen-15

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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reproductive sytem

... all body systems, is interlinked. The first part of the questions might throw you off a bit. Start by thinking big. Everything in the body needs oxygen and a blood supply, both of which link to the circulatory and respiratory systems. Whilst parts are autonomous the vast majority requires messages ...

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by Babybel56
Fri Feb 28, 2014 8:49 am
 
Forum: Molecular Biology
Topic: reproductive sytem
Replies: 1
Views: 131

The effect of ethanol on peroxidase activity

Hi! I'm wondering if anyone knew why by increasing ethanol concentration in a 10mL solution mixed with yeast, a greater amount of oxygen was produced? So peroxidase activity increased when i increased ethanol concentration in my lab. I thought it was suppose to be the opposite since alcohol ...

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by wayne2824
Fri Feb 14, 2014 10:44 pm
 
Forum: General Discussion
Topic: The effect of ethanol on peroxidase activity
Replies: 1
Views: 219

Re:

... to stop it. But it's an exam question,so they probably want to know, whether you know that TCA runs aerobically only, althoughit doesn't require oxygen per se. Thus it's 200 ATPs from glycolysis (2 per 1 Glc) and could be additional 200 from TCA (1 per 1 acetyl-CoA). The TCA or Krebs cycle only ...

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by caters
Mon Feb 03, 2014 4:37 am
 
Forum: Cell Biology
Topic: ATP produced by human cells in an anaerobic chamber. LOST!
Replies: 2
Views: 1673

Re: drink water, orange juice or Cola before eating?

... in the less-digested form and also the CO2. As most people know, CO2 is a waste product which the lungs expel in exchange for the much-needed oxygen supply into our body and ultimately, our cells. This helps keep our blood gases balanced, and the premature emptying of CO2 in this manner causes ...

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by MamaWrites
Sat Nov 30, 2013 8:40 pm
 
Forum: Physiology
Topic: drink water, orange juice or Cola before eating?
Replies: 15
Views: 32105

some bloody questions

The most critical metabolite supplied to cells by the blood is oxygen . Ischaemia is the term used to describe the condition when the blood supply is insufficient to meet the metabolic demands of a tissue. In response the body can compensate by releasing ...

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by zak
Mon Nov 25, 2013 8:09 pm
 
Forum: Human Biology
Topic: some bloody questions
Replies: 4
Views: 2056
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