Biology Lab Testing For Organic Compounds In Foods, Biochemistry

Biology Lab  Testing For Organic Compounds In Foods,  Biochemistry
Biology Lab  Testing For Organic Compounds In Foods,  Biochemistry
Biology Lab  Testing For Organic Compounds In Foods,  Biochemistry
Biology Lab  Testing For Organic Compounds In Foods,  Biochemistry
Biology Lab  Testing For Organic Compounds In Foods,  Biochemistry
Biology Lab  Testing For Organic Compounds In Foods,  Biochemistry
Biology Lab  Testing For Organic Compounds In Foods,  Biochemistry
Biology Lab  Testing For Organic Compounds In Foods,  Biochemistry
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Product Description
What types of organic compounds are contained in the foods we eat? Use this lab during your biochemistry unit for grades 9-12. This is a really fun lab that your students will love. Not only will this lab review and reinforce your teaching on organic compounds, it teaches correct lab procedures and protocols as well.


INTRODUCTION:
The compounds our bodies need for energy and building materials are carbohydrates, proteins, fats, vitamins, and minerals. These compounds are present in the plants and animals we use as food. Simple chemical tests with substances called indicators can be conducted to determine the presence of these organic compounds.


PURPOSE:
• To learn the chemical tests for certain organic molecules including sugars, starches, proteins, lipids, vitamin C and salt.
• To perform tests on known solutions of organic compounds to learn the positive tests for these organic compounds.
• To test several different foods of unknown composition to determine what organic compounds they contain.

Students will test different foods for the presence of sugars, starch, proteins, fats, salt, and vitamin C. Your download will include handouts that contain: Title, Purpose, Introduction, Materials, Safety Precautions, Procedure, Analysis Questions, Student Data Pages, Answers to all Questions, and Teacher Preparation Notes.

You can choose to have students write their own lab report, or you can use the included student data sheets.

I have included two different versions of this lab in this download. One is slight more complex than the other. Which I use depends upon the ability levels of my students from year to year. For each lab you will also receive a pdf version and a Word document so that you can make changes if you wish.

MATERIALS LIST:
Test tubes, Test tube racks, Glucose solution, Starch solution, Protein solution, Fat or oil, Iodine, Benedict's solution, Biuret solution, Brown paper, Hot water bath, Vitamin C solution, Indophenol, NaCl solution, Silver nitrate, a variety of foods.

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Total Pages
14 pages
Answer Key
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Teaching Duration
2 hours
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