Please see Mr. Wenzel (student teacher) for more information
Biology 12
Start Wonder list...
Carb Notes: http://easysciencenote.blogspot.ca/2012/12/carbohydrate-basic-fact.html
Carb Quiz: http://www.softschools.com/quizzes/language_arts/carbohydrates/quiz2612.html
Finish Video: Organic Molecules - You are what you eat
https://www.khanacademy.org/partner-content/crash-course1/crash-course-biology
Finish Mystery Sample Lab (see instructions below)
Work on journal research - Proteins & Lipids
Fat test: positive test (translucent spots that do not dry out)
Place a small drop of your sample on a piece of unglazed paper, label it, and spread it as thinly as possible over the small area. Use water for one of your spots as a control sample. Leave it until the end of the lab to dry. Once it has dried hold the paper up to the light and look for any translucent spots. These indicate the presence of fat.
Sample
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Translucent Spot Present ?
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Fat Present?
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Translucent Spot Present ?
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Fat Present?
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1.
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5.
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2.
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6.
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3.
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7.
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4.
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8.
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Protein test: positive test (colour change to purple)
Place 2ml of each solution in a separate, appropriately labelled test tube. Put 2 ml of water in another tube as a control sample. Record initial colour. To each tube add 15 drops of Buiret’s reagent. Record final colour. Which samples contain protein?
Observations:
Samples
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Initial Colour
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Final Colour
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Protein present?
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1.
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2.
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3.
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4.
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5.
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Analyze Data
Using the information you have gathered, match the unknown sample to its correct identity.
Options:
Sugary Soft Drink
Clean fresh water
Protein power sports drink
Sample
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Fat Present?
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Sugar Present?
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Complex Carb present?
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Protein Present?
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Sample Name
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Unknown
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What led you to this conclusion?