What am I eating anyway?
What am I Eating Anyway?
Question: Are the Biomolecules Sugar, Starch, Protein, and Lipids present in the foods Turkey Gravy, Peas, and Applesauce?
Background Information: Learning experience 4 teaches the understanding of how to identify a small sample of Biomolecules within a wide variety of substances. The specific biomolecules that were observed in the lab were Sugar, Starch, Protein, and Lipids. These 4 Biomolecules were tested within the foods applesauce, peas, and turkey gravy. These biomolecules were identified using the solution indicators for the Biomolecules which are respectively designated for each biomolecule. Iodine for Starch, Benedicts for Sugar, Biurets for Protein, and a brown paper bag for Lipids. The biomolecules were observed when the food and indicators were combined, the solution then turned a color designating a specific biomolecule. Protein turns purple, Iodine turns black/blue, Sugar turns orange, and since lipids was actually not mixed with another solution and instead dropped onto a brown paper bag, would reveal a grease stain over time to indicate whether or not the substance contained Lipids. Two other major biomolecules that were not tested in the lab were Nucleic Acids and Carbohydrates. If we study the foods before the lab we can observe what biomolecules may be in the foods. Since Turkey Gravy contains meat, it may contain Protein. Since Applesauce comes from an apple, it should contain some sort of natural sugar. Biomolecules are building blocks of energy for our bodies within our foods.
Hypothesis: If indicators are added to a food, then the food will undergo a chemical change, because the indicator is revealing nutrients found within the substance.
Materials:
For each group of four students
4 Safety Goggles
4 Pairs of Disposable Gloves (Optional)
20 Test tubes
1 Test Tube Clamp
1 Test Tube Rack
1 Clean EyeDropper
1 Glass Stirring Rod
Distilled Water in a beaker
1 Wax Marking Pencil
3 Food samples
Question: Are the Biomolecules Sugar, Starch, Protein, and Lipids present in the foods Turkey Gravy, Peas, and Applesauce?
Background Information: Learning experience 4 teaches the understanding of how to identify a small sample of Biomolecules within a wide variety of substances. The specific biomolecules that were observed in the lab were Sugar, Starch, Protein, and Lipids. These 4 Biomolecules were tested within the foods applesauce, peas, and turkey gravy. These biomolecules were identified using the solution indicators for the Biomolecules which are respectively designated for each biomolecule. Iodine for Starch, Benedicts for Sugar, Biurets for Protein, and a brown paper bag for Lipids. The biomolecules were observed when the food and indicators were combined, the solution then turned a color designating a specific biomolecule. Protein turns purple, Iodine turns black/blue, Sugar turns orange, and since lipids was actually not mixed with another solution and instead dropped onto a brown paper bag, would reveal a grease stain over time to indicate whether or not the substance contained Lipids. Two other major biomolecules that were not tested in the lab were Nucleic Acids and Carbohydrates. If we study the foods before the lab we can observe what biomolecules may be in the foods. Since Turkey Gravy contains meat, it may contain Protein. Since Applesauce comes from an apple, it should contain some sort of natural sugar. Biomolecules are building blocks of energy for our bodies within our foods.
Hypothesis: If indicators are added to a food, then the food will undergo a chemical change, because the indicator is revealing nutrients found within the substance.
Materials:
For each group of four students
4 Safety Goggles
4 Pairs of Disposable Gloves (Optional)
20 Test tubes
1 Test Tube Clamp
1 Test Tube Rack
1 Clean EyeDropper
1 Glass Stirring Rod
Distilled Water in a beaker
1 Wax Marking Pencil
3 Food samples