28 Sep How do the intake of nutrients and expenditure of energy relate to a metaboliclevel?
Student Name: Taminderpalkaur
Access Code (located on the lid of your lab kit): AC-54NRLKM
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
Sample
Initial Color
Hypothesis (Protein +/-)
Final Color
Protein Present?
Albumin (1)
Sample
Initial Color
Hypothesis (Protein +/-)
Final Color
Protein Present?
Gelatin (2)
Glucose (3)
Light blue
–
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.
2. Whatcanyouconcludeaboutthemolecularmake-upofpotatoesandonionsbasedonthetestsyou performed? Why might these foods contain thesesubstances?
3. Whatresultswouldyouexpectifyoutestedribose,amonosaccharide,withBenedict’ssolution? What results would you expect if you tested it withIKI?
4. Dietandnutritionarecloselylinkedtothestudyofbiomolecules.Howshouldyoumonitoryourfood intake to insure the cells in your body have the materials necessary tofunction?
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