how are oxygen and carbon dioxide transpoted in the blood?
357407
First, the diaphragm contracts allowing entrance of air into the body. (I'll tell you why and how the diapraghm contracts later.) Oxygen then travels into the several parts of the lungs (I have given them in your other question) until it reaches the alveoli. The alveoli is suurounded by arteries and veins. Oxygen diffuses into the blood cells and is distributed to the different cells in the body. The mitochondria of cells use up the oxygen so as to provide us energy we need. In this process, carbon dioxide is produced. The carbond dioxide are released into the blood stream. It will travel through the blood stream until it reaches the alveoli where the blood cells empty the carbon dioxide into the alveoli to make room for the needed oxygen. When the oxygen is already used up, there will be a high concentration of carbon dioxide in the blood which will somehow raise the blood pH. An impulse is sent to the brain to let it know that the blood pH is increasing and in return, the brain signals the diaphragm to contract to tell the body to gasp for air. This cycle is repeated and is responsible for every breath we take.\n\nI hope I have helped you.
5034
Oxygen (as O2) enters the lungs and diffuses through the thin layer of epithelial cells into the blood stream, where it binds one of four sites on hemoglobin.  The hemoglobin carries the oxygen to the heart, where it is then pumped out to the tissues of the body.  Tissues uptake oxgen as needed, and give CO2 in return to the blood stream.  The CO2 is then carried back to the lungs, where more oxygen is taken up.\n\nOxygen serves as an oxidizer, while fuels (such as sugar and fats) serve as reducers.  The oxygen acts in what are called "Oxidation/reduction" reactions (aka Redox--defined by a transfer of electrons) which release an excess of energy.  That energy is used to make ATP (adenosine triphosphate), which acts as the energy carrying molecule of choice by the body.  The systems used to make ATP are primarily glycolysis and the electron transport chain.
501986
The oxygen is collected by the red cells in the alveolis (in the lungs), they travel all the way trough your body providing oxigenation to all the extremities. When the blood contains oxygen its colour turns pure red but when it caries Carbon Dioxide it turns darker.
406302
a) When you inhale, air goes through your nostrils and into you air ways all the way to your lungs.\nb) Inside your lungs are small alveoli that capture O2 molecules and trap them for your red cells to start working.\nc) Each red cell is like a carrier that excahnges O2 molecules for CO2 moluecules (those of used air on your bloodstream)\nd) Red cells go through your blood to every tiny place in your body giving oxygen where is needed and taking CO2 back to the lungs.  Your lungs get rid off those CO2 molecules when you exhale.\ne) You heart pumps blood in two directions:  It makes the blood with carbon dioxide (CO2) go to the lungs and the blood that is oxygen rich, go to all your body.  Your brain is the primary oxygen client in your body.
437859
they transfer oxygen into the blood stream and co2 out\n\nmore here:\n\nhttp://en.wikipedia.org/wiki/Lungs
724851
Blood plasma, red blood cells, white blood cells, platelets, and numerous nutrients that are being delivered to various parts of your body.  \n\nStructurally speaking, the circulatory system is a complex set of arteries drawing blood away from your lungs and to every part of your body (including the brain and heart muscle), veins drawing blood toward your lungs, the heart that pumps to keep blood moving, and capillaries that drop of oxygen to cell tissue in exchange for carbon dioxide.
467845
how indepth do you want this?\n\nbasically caused by a pressure differential in your lungs (the diaphragm inflates the lungs)...the oxygen molecules are forced through alveoli (sacs) into the bloodstream because fo this pressure differential...at the same time...Carbon Dioxide flows in the opposite direction from the blood to teh lungs to be exhaled...the oxygen attaches itself to hemoglobin..which is found in the red blood cells...and is then transported throughout the body by the heart (arteries pump blood away from the heart to teh body..veins take the blood back)\n\nhope thats good enough lol
579619
Oxygen bind to hemoglobin which is part of the red blood cells.  It is picked up in the lungs where there are little sacs that have a very thin lining of cells.  Therefore the air you breathe in will be able to reach the blood.  Then the hemoglobin will carry blood to the parts of the body.
512352
The heart is a fist-sized, muscular organ that pumps blood through the body. Oxygen-poor blood enters the right atrium of the heart (via veins called the inferior vena cava and the superior vena cava). The blood is then pumped into the right ventricle and then through the pulmonary artery to the lungs, where the blood is enriched with oxygen (and loses carbon dioxide). The oxygen-rich (oxygenated) blood is then carried back to the left atrium of the heart via the pulmonary vein. The blood is then pumped to the left ventricle, then the blood is pumped through the aorta and to the rest of the body. This cycle is then repeated. Every day, the heart pumps about 2,000 gallons (7,600 liters) of blood, beating about 100,000 times. enchantedlearning.com
572827
Its like gas for a car. Blood is a oxygen carrier, and supports all the body organs. If anyone loses too much of it- too bad!
560650
haha the answer above me is funny...what what exactly do you want to know about it? theres a lot to do with respiration...theres inspiration where the air is taken in..this is caused by a contraction of the diaphragm..thens there structures like the epiglotis, trachea, pharynx...then the oxygen goes to your lungs..where gas exchange occurs in the alveoli's...this is done by some complicated process that i dont understand really..i didnt really pay attention during this part of physiology/biology class. haha. anyway, the oxygen is picked up by the pulmonary artery and goes to the rest of the body through the aorta...uhh, i can think of anything else..hope this helps!
1116831
Diffusion of carbon dioxide and oxygen take place in the alveolar of the lungs.  Since there is a higher concentration of oxygen in the alveolar sac as compared to the capillaries surrounding it, the oxygen goes from the higher concentration to that of the lower concentration.  The carbon dioxide is more concentrated in the capillary blood than the alveoli. so it diffuses into the lungs.  \n\nIn photoynthesis water must diffuse into the plant or bacterial cell.  It is then destroyed in what is commonly called the light reactions.  It is separated into Hydrogen ions and oxygen.  The oxygen is released into the air via diffusion and the Hydrogen ions are used to produce ATP.  Since the water is used up more is needed to keep the process up. So more water diffuses into the cell.  In order for tthe palnt to make food from the carbon dioxide that has diffused into the cell as well. It must enter the chloroplast.  Here the Dark reactions of the process occur.  The carbon dioxide is used up along with some of the ATP to make sugar.  SO as the sugar is made and relocated this creates a carbon dioxide deficit in the chloroplast.  So more Carbon dioxide diffuses into it.  This continues until the process stops or the plant dies.
308322
Lung is a special organ which allows gas exchange. Air passes through trachea, bronchi, bronchioles and finally alveoli. Oxygen will diffuse form the alveoli into the blood plasma whereas the diffusion of carbon dioxide occurs in opposite direction.
1095196
Deoxygenated blood enters the right atrium of your heart which delivers the blood to you right ventricle.  The right ventricle pumps blood to your lungs where the carbon dioxide is dumped for exhalation and the oxygen is loaded onto the hemoglobin molecules in the blood.  Then the oxygenated blood is delivered to your left atrium which then fills your left ventricle.  The muscles in the walls of your left ventricle are thick because they pump blood out of your heart, through your aorta and to the rest of your body - a very big job!
1130113
when you take a breath in the oxygen is taken into the blood and exchanged for carbon dioxide(which is the waste products of air), the same air is breathed out it takes a second to swap
915464
In the alveoli the exchange is simply the difference in concentraions, diffusion.  The high concentration of oxygen in the lungs and low concentration of oxygen from the pulmonary artery (the opposite for CO2) follow the laws of diffusion.  In muscle cells CO2 is released by the muscle in combination with water to form H2CO3, an acid, as well as lactic acid.  The acidic environment results in what is called a Bohr shift, which decreases the affinity of oxygen to the hemoglobin to which it is attached.  This way the cells in the body can get oxygen on demand: cells with a higher metabolism get priority over cells with lower metabolism.\n\nSide note:\nCarbon monoxide prevents hemoglobin from releasing its oxygen creating an anoxic state.
1049982
The lungs are a rich lattice of alveoli, which provide an enormous surface area for gas exchange. A network of fine capillaries allows transport of blood over the surface of alveoli. Oxygen from the air inside the alveoli diffuses into the bloodstream, and carbon dioxide diffuses from the blood to the alveoli, both across the exceptionally thin alveolar membranes. The drawing and expulsion of air is driven by muscular action.