why body produce carbon dioxide?

Answer 1

Adenosine 5'-triphosphate (ATP) is a multifunctional nucleotide that is most important as a "molecular currency" of intracellular energy transfer. In this role ATP transports chemical energy within cells for metabolism. It is produced as an energy source during the processes of photosynthesis and cellular respiration and consumed by many enzymes and a multitude of cellular processes including biosynthetic reactions, motility and cell division. ATP is also incorporated into nucleic acids by polymerases in the processes of DNA replication and transcription. In signal transduction pathways, ATP is used as a substrate by kinases that phosphorylate proteins and lipids, as well as by adenylate cyclase, which uses ATP to produce the second messenger molecule cyclic AMP.

when this Adenosine 5'-triphosphate is breaked in presence of oxygen it produces water(H2O) , corbon dioxide (CO2) and glucose ( C6H12O6 ) and other by-products. Thus, CO2 is produced inside our body.

Answer 2

The respiratory and circulatory systems work together to deliver oxygen to cells and remove carbon dioxide in a two-phase process called respiration. The first phase of respiration begins with breathing in, or inhalation. Inhalation brings air from outside the body into the lungs. Oxygen in the air moves from the lungs through blood vessels to the heart, which pumps the oxygen-rich blood to all parts of the body. Oxygen then moves from the bloodstream into cells, which completes the first phase of respiration. In the cells, oxygen is used in a separate energy-producing process called cellular respiration, which produces carbon dioxide as a byproduct. This carbodn dioxide is created due to energy-producing biochemical reactions in your cells


The second phase of respiration begins with the movement of carbon dioxide from the cells to the bloodstream. The bloodstream carries carbon dioxide to the heart, which pumps the carbon dioxide-laden blood to the lungs. In the lungs, breathing out, or exhalation, removes carbon dioxide from the body, thus completing the respiration cycle.

Carbon dioxide is transported from the body cells back to the lungs as:

1 - bicarbonate (HCO3) - 60%
formed when CO2 (released by cells making ATP) combines with H2O (due to the enzyme in red blood cells called carbonic anhydrase) as shown in the diagram below
2 - carbaminohemoglobin - 30%
formed when CO2 combines with hemoglobin (hemoglobin molecules that have given up their oxygen)
3 - dissolved in the plasma - 10%

Answer 3

Carbon Dioxide is produced on the cellular element via the technique of cellular respiration in which Glucose enters glycolysis, pyruvate is formed and contained in the presence of oxygen enters to Krebs (or citric acid) cycle generating carbon dioxide and water. From there, NADH produced via the Krebs cycle enters the electron shipping chain the position the majorty of ATP is produced and for this reason power derived

Answer 4

The body can produce CO2, thanks to cellular respiration. The cells, in the body, utilize glucose C6H12O6 (or, sometimes, other molecules), and O2 to produce ATP (energy molecules), with water H2O and carbon dioxide CO2 as waste products. ATP is the main energy source for the majority of cellular functions.
The CO2 can be eliminated from the body thanks to rspiration (breathing): O2 comes in, CO2 goes out. Both O2 and CO2 can be transported through the bloodstream.

Answer 5

After having read the above five answers I thought I should satisfy your query by simplfying things.But first I will tell you WHERE carbondioxide is produced and then I will tell you WHY it is produced.
Carobondioxide is produced in the cells of our body.When one molecule of glucose breaks down, two molecules of pyruvic acid are produced.This is the end of a series of reactions called glycolysis. The purpose behind this is to get energy from glucose.
But is this process little enegy is obtained. So, to obtain further energy, pyruvic acid is converted into the acetyl-coA. AT THIS POINT PYRUVIC ACID LOSES ONE CARBON TO FORM ONE CARBONDIOXIDE.
Now acetyl-coA enters the mitochondria.The aceyl( 2 carbon) group joins the oxaloacetate( 4 carbon) to become citric acid( 6 carbon) and the citric acid cycle commences within the matirx of mitochondria.This citric acid is converted into Ketoglutaric acid( 5 carbon), and in this process ONE CARBON DIOXIDE IS PRODUCED.
In the next step, ketoglutaric acid is converted into succinic acid(4 carbon), and in this process ONE CARBON DIOXIDE IS PRODUCED.
You have seen that one molecule of pyruvic acid resulted in 3 molecules of CARBON DIOXIDE. Therefore, two molecules of pyruvic acid that resulted from one molecule of glucsoe would produce 6 molecules of CARBON DIOXIDE.
To answer WHY carbon dioxide is produced, all I Ihave to say is that the energy contained in carbon-carbon bond has to be made available, and for this bond has to be weakened, and in order to do that it has to be decarboxylated, and hydrogens have to be removed.
During transport of gases, oxygen diffuses into the cell and finally into the mitochondira. At the same time carobondioxide produced in the cells is diffused out and taken in by the RBC.
Some of carbondioxide is made carbonic acid in the RBC and then kept in the blood as bicarbonate ions.
Some is diffused out through the capillaries in the lungs and is finally expelled in the atomosphere. Some remians in the plasma.

Answer 6

because it's a by-product
aerobic respiration:
C6H12O6 + O2 ----> C02 + energy + H20
Glucose + Oxygen ---> energy + carbon dioxide + water

the main product is Oxygen, so it's jsut a "trash" that's why your body throw them away.

Answer 7

You gotta problem wit dat?