Saturday, November 21, 2009

alex.m 11/21

This week we laerned a lot about respiration. First of all when we repirate we inhale oxygen(o2) and carbohydrates(C6H12O6). When we exhale we breath out comes carbon dioxide(CO2) and water(H2O). What we also learned is that both sides of the equation need to have equal amounts of atoms. Respirations happens all through your cells and lungs. This way all of the cells can carry the oxygen through the rest of your body. Red blood cells drop off nutrients and oxygen to the other cells so they can all respirtate. That we figured out since our lungs and cells pass the oxygen through the other cells, there is not as much oxygen gets exhaled that we inhale. The mitochandria turns the oxygen into carbon dioxide(CO2) when we exhale. After we finished our respiration(for now!) we started to discuss photosynthasis. Plants take in carbon and release oxygen, so we can inhale oxygen and they can can "inhale" carbon when we exhale.

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