Class Calendar

Wednesday, October 15th

Science 10

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
Translucent Spot Present ?
Fat Present?

Translucent Spot Present ?
Fat Present?
1.       


5.


2.       


6.


3.       


7.


4.       


8.



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
Initial Colour
Final Colour
Protein present?
1.       



2.       



3.       



4.       



5.       




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
Fat Present?
Sugar Present?
Complex Carb present?
Protein Present?
Sample Name
Unknown







What led you to this conclusion?