1. Macromolecules Lab Results

2. Table 1 Macromolecule Chemical Test Used
(look over lab procedures for chemical test)
Positive Test Result
Negative Test Result (water)
Lipids (Cooking Oil)
(drop method)
Circle #2
Residue stain present
Circle #1
No residue stain present
(Sudan III method)
Test Tube #2
Dark Red precipitates (“blobs”) separated from rest of liquid
Test Tube #1
Liquid turns uniform pale red
Proteins (Albumin - Egg White Powder)
Test tube #2
Liquid turns dark purple
Test tube #1
liquid turns pale blue
Carbohydrates— Glucose (Syrup)
Liquid in test tube is Sea-green/ green
Liquid in test tube is blue
Carbohydrates— Starch (Cracker)
Test tube #5
Liquid turns black/ dark purple
Test tube #4
Liquid turns pale yellow

3. Test for Lipids (Sudan)
Table 2- period 4
Test for Lipids (Drop)
Test for Lipids (Sudan)
Test for Proteins
Test for Glucose
Test for Starch
Observations: Circle#3
Stomach content stained the paper.
Observations: Circle #3
Multiple lipids were found during our testing. We know this because we found multiple colors within our samples.
Observations: Bubble #3
The stomach content was foggy and slightly green
Observations: Test Tube 3
there was no change in color
Observations: Bubble #6
The stomach content turned purple when the iodine was introduced.
Present? yes
Present?
Present? Yes
Not Present?
Not Present? Not Present
This should be not present

4. Test for Lipids (Sudan)
Table 2- period 5
Test for Lipids (Drop)
Test for Lipids (Sudan)
Test for Proteins
Test for Glucose
Test for Starch
Observations: Circle#3
The water didn’t leave a stain. While, there was for cooking oil. For the stomach contents there was a presence of a stain.
Observations: Circle #3
The water was solid pink.
The lipid solution was patchy with pink and so was the stomach contents.
Observations: Bubble #3
The water didn’t change. The protein had a purple tint to it. The stomach acid didn’t change.
Observations: Test Tube 3
Ombre
Blue
Green
Observations: Bubble #6
After adding the iodine solution to the water it became a tinted yellow.
When iodine was added to the starch it turned into a purplish color.
When the iodine solution was added to the stomach solution it became purple with tints of the color of the stomach solution.
Present? yes
Present? Yes
Present?
Present? no
Not Present?
Not Present? yes

5. Test for Lipids (Sudan)
Table 2- period 6
Test for Lipids (Drop)
Test for Lipids (Sudan)
Test for Proteins
Test for Glucose
Test for Starch
Observations: Circle#3
When drops were added to the different circles, Circle 3 (stomach contents) was not as transparent as Circle 2 (cooking oil). Lipids were not present in the stomach:D
Observations: Circle #3
After the drops of Sudan lll was added to the sample, the stomach resembled the oil (lipid solution.) The sample formed concertrationas and layer of red
Observations: Bubble #3
No reaction, no color change because there was no protein;D
Observations: Test Tube 3
No Recation or color change in any test-tube.
Observations: Bubble #6
Stomach contents and Starch turned purple when iodine was added.-_-
Present?
Present? yes
Present? Yes XD
Not Present? this one__
Not Present?
Not Present? check
Not Present? Not Present
Focus on this result for lipids

6. Test for Lipids (Sudan)
Table 2- period 7
Test for Lipids (Drop)
Test for Lipids (Sudan)
Test for Proteins
Test for Glucose
Test for Starch
Observations: Circle#3
There was a presence of lipids because there was a residue left in circle three.
Observations: Circle #3
Red Spots
Observations: Bubble #3
The stomach solution and the Biurets solution mixed but the stomach solution sat on top of Biurets. The solution also stayed blue and didn’t change to purple.
Observations: Test Tube 3
The water test had no color change, the glucose test changed the original from dark blue to the heated light blue, and the stomach acids changed from dark blue to a seafoam green.
Observations: Bubble #6
The color turned from white to purple.
Present? yes
Present? no
Present? yes
Not Present?
Not Present? yes