Question

Sudan IV Test for Lipid 1. Obtain five test tubes and number them 1-5. Your instructor may ask you to test some additional materials. If so, include additional numbered test tubes. 2. To each tube, add the materials listed in Table 3. 3. Add five drops of water to tube 1 and five drops of Sudan IV to each of the remaining tubes. Mix the contents of each tube. Record the color of the tubes' contents in Table 3 on your worksheet. Test Tube Sudan's Color Reaction Testing Solutions Distilled Water Test Tube 1 Test Tube : 2 Glucose Solution Milk Test Tube # 3 Test Tube 84 Test Tube 85 Skim milk Starch Solution Test Tube 16 Unknown Solution 11 Test Tube 49 Vegetable Oil Solution Positive control: Negative control:

Can someone help me with the color reactions, positive and negative control, and the 6 questions?

Answer 1

I am answering the colors of all the solutions.

Positive and negative controls are to be selected from these solutions only? What about the unknown which is mentioned? Please repost the question with this information. It will be solved.

Sudan IV Test for Lipid 1. Obtain five test tubes and number them 1-5. Your instructor may ask you to test some additional materials. If so, include additional numbered test tubes. 2. To each tube, add the materials listed in Table 3. 3. Add five drops of water to tube 1 and five drops of Sudan IV to each of the remaining tubes. Mix the contents of each tube. Record the color of the tubes' contents in Table 3 on your worksheet. Test Tube Testing Solutions Sudan's Color Reaction Test Tube # 1 Distilled Water Test Tube : 2 Glucose Solution Test Tube 3 Milk No change Reddish bringe I no charle No change Skim milk Starch Solution Test Tube #4 Test Tube 85 Test Tube 16 Test Tube 89 Unknown Solution 11 Vegetable Oil Solution Reddish Orary Positive control: Negative control:

The lodine test for starch 1. Obtain seven test tubes and number them 1-7 2. Add to each tube the materials to be tested as shown in Table 1 on your worksheet. Your instructor may ask you to test some additional materials. If so, include additional numbered test tubes. 3. Add three to five drops of iodine to each tube and mix 4. Record the color of the tubes' contents in Table 1 Test Tube Testing Solutions lodine Color Reaction Test Tube 1 Distilled Water Test Tube 82 Glucose Solution Onion Solution Teat Tube Test Tube Potato Solution Test Starch Solution Blut-black Blue-black Blue-black Honey Solution Sweet Potato Solution Test Tubes Soda Test Tube Positive control: Negative control

The Bluret Test for Protein 1. Obtain five test tubes and number them 1-5. Your instructor may ask you to test some additional materials. If so, include additional numbered test tubes. 2. To each test tube add the materials listed in Table 2 CAUTION: Do not spill the 3. Add 2 mL of Biuret solution to the test tube & mix NaOH-it is extremely caustic. 5. Record the color of the tubes' contents in Table 2 on your worksheet. Test Tube # Testing Solutions Biuret's Color Reaction Test Tube 1 Distilled Water Test Tube #2 Glucose Solution Test Tube # 3 Egg Beaters Test Tube 4 Collagen Solution Test Tube 5 Starch Solution Violet violet videt Milk Test Tube # 6 Test Tube 9 Amino Acid Solution Positive control: Negative control: Benedict's test for reducing sugar

Benedict's test for reducing sugars 1. Obtain seven test tubes and number them 1-7. 2. Add to each tube the materials to be tested (see Table 1). Your instructor may ask you to test some additional materials. If so, include additional numbered test tubes. Add 2 ml of Benedict's solution to each tube and mix 3. Place all of the tubes in a boiling water-bath for three minutes and observe color changes during this time. 4. After 3 minutes, remove the tubes from the water bath and let them cool to room temperature, Record the color of each test tube in Table 1 Test Tube Testing Solutions Benedict's Color Reaction Test Tube 81 Distilled Water Test Tube 2 Glucose Solution brick red pept: Starch Solution Test Tubes Test Tube 4 Onion Solution Test Tubes Potato Solution Honey Solution brick red shut Sweet Potato Solution brick red sent Benedicto Tosting Positive control: Negative control