Sunday, December 6, 2009

what we did in class 12/5/09

This week in class we discussed fermentation. Fermentation is respiration without oxygen or annerobic respiration. We wanted to know how this happened so we set up an experiment. We put water, sugar and yeast into a tube and shoock it up and we let it sit overnight with the lid closed. As a result, the next day we found that in the tube there was CO2, alchohol and energy. We learned that fermentation is respiration without oxygen or o2 and it makes alchohol. Respiration is with oxygen and it makes energy and both of them make CO2.

This week we also learned about DNA. We learned that its in every cell in your body. Within the cell its in the nucleus and it conrols things like a nucleus does. It is a molecule because it is made up of more than one cell and it looks like a twisted ladder. It is made up of two parts One is called the double helix which is also known as the backbone of sugar bacause it is made up of sugar. The other part is caled the base pair which connect the two helixes. We also learned that the full name of DNA is Deoxyribonucleic Acid which when u break it down is double oxygen suger molecule and that basicly is what DNA is.

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