Where does the carbon in the carbon dioxide you breath out come from?

Answer 1

The Carbond Dioxide (CO2) in expired air is the waste product of complete cellular respiration that is carries in the blood to be removed by the lungs. Each cell uses a carbon based fuel (like glucose) to get energy. The cells that contain strucutres called Mitochondria are able to cully oxidise such hydrocarbons to just CO2 and water. The oxygen comes from inhaled air, and both the hydrogen and carbon comes from these food molecules.

Answer 2

This needs alot of explaining.

The oxygen goes throught your mouth, wind pipe into your lungs.

First of all there are the lungs. When oxygen comes into your lungs there are these small bubble like things that have a thin wall. Outside of the thin wall there are blood vessels going to your cells. When the oxygen comes inside it goes throught the thin walls and mixes with the blood.

The blood then takes it to your cells and it reactes with the glucose in your cells. It produces CARBON DDIOXIDE, water and energy.

( glucose + oxygen = carbon dioxide + water +energy )

Then the carbon dioxide mixes with the blood and goes back to the lungs. It goes throught the walls of the bubble like things ( alviolai) and go back through your wind pipe and out of your mouth.

That's what happens....................

Answer 3

Carbon dioxide moves in and out of the atmosphere, the oceans, animals, trees and the soil as part of the carbon cycle, which neither creates nor destroys carbon. Additional atmospheric carbon dioxide comes from the burning of fossil fuels (coal, oil and natural gas). This burning releases carbon that has been safely stored underground for 300 million years.

Answer 4

The carbon in the carbon dioxide you breathe out comes from the food you eat. During cellular respiration, cells break down glucose to release energy, producing carbon dioxide as a byproduct. This carbon dioxide is then exhaled from the lungs.

Answer 5

Red blood cells collect CO2 when they distribute oxygen throughout the body. The CO2 is transferred from the red blood cells to the alveoli in the lungs, and then exhaled.

Answer 6

Carbon dioxide comes from the Earth's atmosphere and also the crust. 82 percent of greenhouse gas is generated from human activity.

Answer 7

aeorobic respiration (plus drinking soda or beer)

Answer 8

It comes from inside you, because you inhale oxygen and then you make it carbon dioxide.