01 Oct How do the intake of nutrients and expenditure of energy relate to a metaboliclevel?
Pre-Lab Questions:
1. How do the intake of nutrients and expenditure of energy relate to a metaboliclevel?
2. Do you think you take in more calories than you burn in a day? Why or whynot?
Experiment 1: Tracking Your Nutrition
Macronutrient Graph Screenshot:
Analysis:
Experiment 2: Testing for Reducing Sugars
Table 1. Testing for Proteins Results
Experiment 2: Testing for Reducing Sugars
Table 1. Testing for Proteins Results
Sample
Initial Color
Hypothesis (Protein +/-)
Final Color
Protein Present?
Albumin (1)
Sample
Initial Color
Hypothesis (Protein +/-)
Final Color
Protein Present?
Gelatin (2)
Glucose (3)
Water (4)
Table 2. Testing for Reducing Sugars Results
Sample
Initial Color
Hypothesis (Reducing Sugar
+/-)
Final Color
Reducing Sugar Present?
Potato (1)
Onion (2)
Glucose (3)
Water (4)
Table 3. Testing for Starch Results
Sample
Initial Color
Hypothesis (Starch +/-)
Final Color
Starch Present?
Potato (1)
Sample
Initial Color
Hypothesis (Starch +/-)
Final Color
Starch Present?
Onion (2)
Starch (3)
Water (4)
Table 4. Testing an Unknown – Proteins
Sample
Initial Color
Hypothesis (Protein +/-)
Final Color
Protein Present?
Positive Control (1):
Negative Control (2):
Unknown (3)
Table 5. Testing an Unknown – Reducing Sugars
Sample
Initial Color
Hypothesis (Reducing Sugar +/-)
Final Color
Reducing Sugar Present?
Positive Control (1):
Negative Control (2):
Unknown (3)
Table 6. Testing an Unknown – Starch
NOTE: Before filling in this table, take a screenshot of your test tubes to include at the end of this document.
Sample
Initial Color
Hypothesis (Starch +/-)
Final Color
Starch Present?
Positive Control (1):
Negative Control (2):
Unknown
Post-Lab Questions
1. Writeastatementtoexplainthemolecularcompositionoftheunknownsolutionbasedonthere- sults obtained during testing with eachreagent.
No changes noted most water.
2. Whatcanyouconcludeaboutthemolecularmake-upofpotatoesandonionsbasedonthetestsyou performed? Why might these foods contain thesesubstances?
Both have monosaccharides due to this they help body to have more nutrients.
3. Whatresultswouldyouexpectifyoutestedribose,amonosaccharide,withBenedict’ssolution? What results would you expect if you tested it withIKI?
They can change color due to reducing sugars.
4. Dietandnutritionarecloselylinkedtothestudyofbiomolecules.Howshouldyoumonitoryourfood intake to insure the cells in your body have the materials necessary tofunction?
We need to have balance diet to have nutrients to cells of body then body will produce enough energy to work.
Insert a screenshot of your test tubes after the starch test from “Testing An Unknown”
