Sunday, September 11, 2011

Carbon Fixation In Elodea Lab

Analysis:

1. When we blow air into the Phenol red, it changes it's color from red to yellow because of the CO2 we blow in with the straw.

2. I think it took about 35-50 minutes to see the color change. I think the color changed because of the cells the elodea plants has in it.

3. I think in this procedure it would need the light for it's reactions and it also needed the light so that this whole process could go through photosynthesis.

4. No we did not see the tube with the Phenol red change color because that one did not have a elodea plant inside like the others and that is why it did not have the same results as the others.

5. Carbon Fixation occurring on humans I don't think that can happen.

6. I believe plants use carbon so that they can make their own food and etc. Carbon Fixation is the process when plants take in carbon from the carbon dioxide to create compounds.

7. The reason why you have to have the control in any experiments is so you can see if anything happens that you weren't expecting something you can analyze it.




Thursday, September 1, 2011

Invasive Species

The invasive specie I found is called the Xenopus Laevis, also known as the Afican Clawed Frog. It's native range is South Africa, Lesotho, the Cango, and South Kenya. It now has been found in different places around the world, but in California there are serveral collected in Orange County. Their ecosystem is in wetlands and are freshwater. Their names Xenopus means strange foot and laevis meanssmooth. They are about 5 inches long, have no tougue or extenal ears. They live up to 5 to 15 years. The way they are harmful is because they reproduce a lot and would eat other frogs or other animals around them. They are usually found in ponds or in rivers.