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.
Blood Vessels: Arteries: These are large blood vessels that take oxygenated blood away from the heart to be distributed throughout the body. The aorta is the body's largest artery. Veins: These blood vessels take deoxygenated blood from around the body back to the heart and lungs to be oxygenated.lood Vessels: Arteries: These are large blood vessels that take oxygenated blood away from the heart to be distributed throughout the body. The aorta is the body's largest artery. Veins: These blood vessels take deoxygenated blood from around the body back to the heart and lungs to be oxygenated.