Dictionary » D » Dioxide



(Science: chemistry) An oxide containing two atoms of oxygen in each molecule; binoxide.

An oxide containing but one atom or equivalent of oxygen to two of a metal; a suboxide. Carbon dioxide. See carbonic acid, under carbonic.

Origin: Pref. Di- _ oxide.

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Stomata remain closed at night then respiration

... any more than your mouth has to be open all the time for your respiratory needs. Night is also the best time to recharge the interior with carbon dioxide with minimized water loss.

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by Darby
Fri Nov 21, 2014 2:07 pm
Forum: Physiology
Topic: Stomata remain closed at night then respiration
Replies: 4
Views: 2358

respiration of human body

... and the air that is exhaled is about 15-percent oxygen, so about 5-percent of the volume of air is consumed in each breath and converted to carbon dioxide. Therefore, a human being uses about 550 liters of pure oxygen (19 cubic feet) per day. The average person takes about 28,800 breaths a day ...

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by angel92
Wed Nov 12, 2014 2:52 pm
Forum: Human Biology
Topic: respiration of human body
Replies: 2
Views: 1014


which process removes carbon dioxide out of the atmosphere? a) combustion b) decomposition c) photosynthesis d) respiration

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by geanna
Mon Mar 24, 2014 11:02 pm
Forum: General Discussion
Topic: biology
Replies: 1
Views: 2127

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

... can adversely affect the digestive process. Additionally, drinking carbonated beverages brings other factors into digestion. When the carbon dioxide enters the stomach, the pyloric sphincter (which is closed while the first stages of digestion occur in the stomach) opens in response to the ...

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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: 16
Views: 42475

Re: photoautotroph and photoheterotroph difference?

... as their energy source ( as opposed to Chemotrophs which use oxidation as their energy source). Photoautotrophs fix inorganic carbon from carbon dioxide into organic carbon in the presence of water. (for example plants). They also produce oxygen as a by product. Photoheterotrophs need organic ...

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by cash
Wed Oct 23, 2013 12:40 am
Forum: Ecology
Topic: photoautotroph and photoheterotroph difference?
Replies: 3
Views: 40797
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