Wednesday, November 7, 2012
Thursday, November 1, 2012
Mitosis/Meiosis Lab
Mitosis and Meiosis Lab was interesting! I video recorded Mr. Stowe teaching about Mitosis but Blogger wouldn't let me attach it to the blog. But here are a few pictures of the male and female reproductive system. And pictures of Mr Stowe!
Diffusion Lab
Potato- Distilled water makes it fell hard-stiff
Salt water - feels more plimfy=moveable and slangy hypertonic.
Celery - salt water - soft feeling
distilled water - made it harder hypertonic
Anaerobic and Aerobic Yeast Lab
We added yeast to solutions to determine if they were a monosaccharide, polysaccharide, disaccharide or a protein. We tested fructose, glucose, lactose, and distilled water. The solutions started at 15 ml and we added .5 g or yeast to each.
This are the solutions and with the compounds that formed
Fructose- 10.5 monosaccharide
Glucose- 18 monosaccharide
Lactose 1.5 polysaccharide
Distilled water- 0
Starch- 0 polysaccharide
Maltose- 9.9 disaccharide
Gelatin- 0 protein
Enzyme Lab
The enzyme lab was pretty interesting. We tested it with liver and potatoes. We found out that the warmer the temperature was the higher the enzyme activity.
This is the information we got for our experiments.
Testing Bio/Molecules
The Testing of the Bio/Molecule lab was long but we got through it. We did the Benedict's Test for Reducing sugars which onions were positive and high sugar concentration the potatoe turned green which meant positive, iodine Test fo Starch which we found out onions had no starch and tomatoes turned black meaning they are loaded with iodine-positive (starch). Buiret Test no protein was found in the onion nor in the potato. And last we did the Sudan IV Test the onion is a lipid because it rises to the top and the potato is negative! Here are a few pictures of the lab that day!
DNA Extraction Lab
The DNA extraction lab was very fun! We extracted a cheek genomic DNA.
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| This is the DNA after I put the dye in it, ready to be put into the bracelet. |
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