Lugol's Ioding Test for Starch/ Sudan 4 Test Lab 4

Biology lab 4 review, lugols iodine test for starch and sudan 4 test

6 cards   |   Total Attempts: 188
  

Cards In This Set

Front Back
What color results from lugols iodine test for starch when the results are positive?
Intense blue or black color (only potato tested positive)
What does the sudan 4 test for?
Lipids /Hydrocarbons
What color results in a positive sudan 4 test?
Red
If fat is present in the sudan 4 test what color will you see
A red layer will be seen floating on top
What substances were tested in the sudan 4 test
Water, vegatable oil, hamburger juice, salad dressing
What substances tested positive in the sudan test
Vegetale oil, salad dressing