The calories in one teaspoon of sugar can vary slightly depending on the manufacture of the spoon, but also on how much you scoop up. Using a measuring spoon would be a good way to get the exact quantity of sugar a teaspoon actually has, which is particularly useful when you are baking.
Blood becomes oxygenated through the process of diffusion in the lungs, more specifically referred to as gas exchange. It is a passive process so that means that many capillaries need to be in close contact with the air that we inspire. In fact the most intimate contact we have with the external world is in our lungs.he veins lead the de-oxygenated blood back to the heart, where  it goes through the right atrium, right ventricle, and through the  Pulmonary Arteries to the lungs, where g â¦ as exchange happens.
The pulmonary artery is the only artery in the body that carries de-oxygenated blood. The pulmonary vein is the only vein that carries oxygenated blood. This is because techni â¦ cally the blood is being carried away from the heart, to the lungs in the case of the pulmonary artery.ind of. Arteries carry blood away from the heart to the body where the oxygen is used up, and then the deoxygenated blood is transported through capillaries to the veins, thr â¦ ough which it is taken to the heart.