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Co2

Co2 --> carbon dioxide

(Science: biochemistry, physiology) a metabolic byproduct of carbohydrate metabolism. Carbon dioxide collects in the tissues, is cleared by the blood (via the veins) and removed from the body via the lungs when we exhale air.

Abbreviation: co2 a heavy odorless colorless gas formed during respiration and by the decomposition of organic substances; absorbed from the air by plants in photosynthesis.A heavy odorless colorless gas formed during respiration and by the decomposition of organic substances; absorbed from the air by plants in photosynthesis.CO2 is the shorthand for carbon dioxide, consisting of one carbon atom and two oxygen atoms.


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Transpiration and Photosynthesis.

... it wasn't. It was a question on a mock exam paper which I have now found the answer to, it was basically this: More photosynthesis More CO2 absorbed Which therefore increases the stomatal opening.

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by harryriley88
Mon Mar 17, 2014 8:23 am
 
Forum: Botany Discussion
Topic: Transpiration and Photosynthesis.
Replies: 3
Views: 235

Re: Diffusion and concentration gradient

... O2 from A to B than from B to A. After all, O2 can't diffuse out of region B if it isn't already present in region B. If B is filled with mostly CO2, then most of the diffusion out of B will be of CO2.

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by wildfunguy
Thu Dec 19, 2013 12:51 am
 
Forum: General Discussion
Topic: Diffusion and concentration gradient
Replies: 7
Views: 2498

Diffusion and concentration gradient

... I don't get that... For example, in the alveoli, dioxygen molecules get into the capillaries because O2 concentration is lower there. However, CO2 concentration is very high in the capillaries. So how do the O2 molecules "know" that this high concentration within the capillaries is ...

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by Aymeric
Sun Dec 15, 2013 1:02 am
 
Forum: General Discussion
Topic: Diffusion and concentration gradient
Replies: 7
Views: 2498

drink water, orange juice or Cola before eating?

... 1) urine composes of more than 95% water. Does that mean we should avoid drinking water, because it's a waste? 2) and how do you think that is the CO2 transported from the cells to lungs? Could it be directly through blood? 3) pH of stomach fluids is something around 2, even Coke is basic in comparison ...

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by JackBean
Tue Dec 03, 2013 9:08 am
 
Forum: Physiology
Topic: drink water, orange juice or Cola before eating?
Replies: 15
Views: 32094

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

... pyloric sphincter (which is closed while the first stages of digestion occur in the stomach) opens in response to the increased pressure from the CO2. This causes the contents of the stomach to empty into the colon in the less-digested form and also the CO2. As most people know, CO2 is a waste ...

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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: 32094
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