Collin County Community College Macromolecules & Carbohydrates Lab Report
Question Description
MACROMOLECULES REPORT SHEET
Download the report sheet, complete it, and then submit it via Blackboard email as an attachment.Do not change the format.
All blue shaded areas require answers.
Benedicts test for reducing sugars (with heat)
Experiment (dry lab)
TUBE |
SUBSTANCE TESTED |
FINAL COLOR |
TEST RESULTS (+ or -) |
IF POSITIVE, name the reducing sugar (glucose, fructose, lactose or maltose). |
1 |
Tap water |
|||
2 |
Glucose solution |
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3 |
Sucrose solution |
|||
4 |
Starch solution |
|||
5 |
Milk |
|||
6 |
Apple juice |
|||
7 |
potato juice |
TUBE |
SUBSTANCE TESTED |
FINAL COLOR |
TEST RESULTS (+ or -) |
A |
Unknown |
||
B |
Unknown |
||
C |
Unknown |
||
D |
Unknown |
Iodine Test for Starch
Experiment (dry lab)
TUBE |
SUBSTANCE TESTED |
FINAL COLOR |
TEST RESULTS (+ or -) |
1 |
Tap water |
||
2 |
Glucose solution |
||
3 |
Sucrose solution |
||
4 |
Starch solution |
||
5 |
Milk |
||
6 |
Apple juice |
||
7 |
potato juice |
TUBE |
SUBSTANCE TESTED |
FINAL COLOR |
TEST RESULTS (+ or -) |
A |
Unknown |
||
B |
Unknown |
Sudan IV Test for Lipids
Experiment (dry lab)
Sudan IV is lipid or water soluble? |
Biuret Test for Protein
Experiment (dry lab)
TUBE |
SUBSTANCE TESTED |
FINAL COLOR |
TEST RESULTS (+ or -) |
1 |
Tap water |
||
2 |
Glucose |
||
3 |
Starch |
||
4 |
Egg white (albumin) |
||
5 |
Milk |
||
6 |
Bread solution |
TUBE |
SUBSTANCE TESTED |
FINAL COLOR |
TEST RESULTS (+ or -) |
A |
Unknown |
||
B |
Unknown |
Hydrolysis of Macromolecules
Experiment (dry lab)
Benedicts Test for reducing sugars (with heat)
TUBE |
SUBSTANCE TESTED |
FINAL COLOR |
TEST RESULTS (+ or -) |
IF POSITIVE, name the reducing sugar |
A |
Starch *without* saliva |
|||
B |
Starch *with* saliva |
Question
What happened to the macromolecule when saliva was added to the test tube? |
End of Lab J
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