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BIOL 202L Lab 17 Worksheet- Nutrition
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BIOL 202L Lab 17 Worksheet- Nutrition///BIOL 202L Lab 17 Worksheet- Nutrition///BIOL 202L Lab 17 Worksheet- Nutrition
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Lab 17 Nutrition BIO202LStudent Name: Click here to enter text.
Access Code (located on the lid of your lab kit): Click here to enter text.
Pre-Lab Questions:
1. How do the intake of nutrients and expenditure of energy relate to a metabolic level?
Different nutrients have different calorific content. During exercise, your body requires more
energy so it is ideal to consume food with high calorific content such as carbohydrates and
fats. In the more intense activities, your body’s metabolism increases thus requires more
calories for energy.
2. Do you think you take in more calories than you burn in a day? Why or why not?
Yes, I do because I’m a stress eater and I can’t always find the time to exercise.
Experiment 1: Tracking Your Nutrition
Macronutrient Graph Screenshot:
Analysis: According to the chart, I ate consumed more calories than needed everyday. I am not
surprise by this result though because I know that I am a snacker and I tend to drink a lot of
sugarly drink throughout the day. To improve my nutrition, I would eliminate sugarly drinks
from my diet and drink more water. I would also exercise into my daily routine.
Experiment 2: Testing for Reducing Sugars
Table 1. Testing for Proteins Results
Hypothesis Protein
Sample Initial Color Final Color
(Protein +/-) Present?
Albumin (1)
Light yellow + Violet Yes
, Lab 17 Nutrition BIO202L
Hypothesis Protein
Sample Initial Color Final Color
(Protein +/-) Present?
Gelatin (2) Dark yellow + Violet Yes
Glucose (3) Clear - Blue No
Water (4) Clear - Blue No
Table 2. Testing for Reducing Sugars Results
Hypothesis Reducing
Sample Initial Color (Reducing Final Color Sugar
Sugar +/-) Present?
Potato (1) Off white + Yellow Yes
Onion (2) Off white + Green Yes
Glucose (3) Clear + Red Yes
Water (4) Clear - Blue No
Table 3. Testing for Starch Results
Hypothesis Starch
Sample Initial Color Final Color
(Starch +/-) Present?
+
Potato (1) Off white Dark purple Yes
Onion (2) Off white - Brown No
Starch (3)
Murky white + Dark purple Yes
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