B. IODINE TEST FOR STARCHES 1. What was the purpose of water in this experiment? 2....
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
B. IODINE TEST FOR STARCHES 1. What was the purpose of water in this experiment? 2. Which gave a stronger positive result (more intense color), apple juice or potato juice? 3. Is starch ever present in animal products such as milk, meat or eggs? Explain. 4. Why did the glucose solutions give a negative result? C. SUDAN TEST FOR LIPID 1. Do you think the milk was whole milk or skim milk? Why? 2. Where were the Sudan crystals found in the well containing water? D. BIURET TEST FOR PROTEIN 1. Do free amino acids have peptide bonds? Explain why or why not. 2. Which solutions had a strong positive result? Were any of these surprising to you? R INSTRUCTOR: A. BENEDICT'S TEST FOR REDUCING SUGARS Test tube distilled water 0.05% glucose 1% glucose 5% flour solution apple juice potato juice milk Spot B. IODINE TEST FOR STARCHES distilled water 0.05% glucose 1% glucose 5% flour solution apple juice potato juice milk Color orange Green Yellow light Blue blight Red and dark blue Red/orange Green Bive Color SECTION/GROUP: Amber Amber Amber Purple DATA: LABORATORY 3 Amber Green & Pieces Amber Positive or Negative? Negative Positive Positive Positive Positive Positive Positive Positive or Negative? Negative Negative Negative positive Negative positive Negative Laboratory 3 Macromolecules. 25 C. SUDAN TEST FOR LIPID Substance Tested water cream milk vegetable oil 5% flour solution D. BIURET TEST FOR PROTEIN Test tube milk distilled water egg albumin starch solution chicken broth apple juice gelatin Dissolved? (Yes/No) No Yes yes yes NO Color Blue Porple light Blue Purple Purple Yellow Purple Positive or Negative? Negative Positive Positive Positive Negative Positive or Negative? Negative Positive Negative Positive Positive Negative Positive DO-IT-YOURSELF BIOLOGY TESTING AN UNKNOWN You will perform four tests on each of the unknowns. Record your results in the following table. Based on the results, you will suggest their identity: reducing sugars, starch, lipid, or protein. The unknowns are labeled A, B, C and D. Before you test each unknown, develop your hypotheses regarding what results you expect to get for each of the four possible substances. E. CHEMICAL TESTING TO IDENTIFY AN UNKNOWN Benedict's Test lodine Test Sudan Test Unknown A B с D Neg Pos Neg Meg she g Pos Neg Neg Neg Neg Pos Biuret Test Pos Neg Unknown Identity protien Sugar Starch deg Neg lipid B. IODINE TEST FOR STARCHES 1. What was the purpose of water in this experiment? 2. Which gave a stronger positive result (more intense color), apple juice or potato juice? 3. Is starch ever present in animal products such as milk, meat or eggs? Explain. 4. Why did the glucose solutions give a negative result? C. SUDAN TEST FOR LIPID 1. Do you think the milk was whole milk or skim milk? Why? 2. Where were the Sudan crystals found in the well containing water? D. BIURET TEST FOR PROTEIN 1. Do free amino acids have peptide bonds? Explain why or why not. 2. Which solutions had a strong positive result? Were any of these surprising to you? R INSTRUCTOR: A. BENEDICT'S TEST FOR REDUCING SUGARS Test tube distilled water 0.05% glucose 1% glucose 5% flour solution apple juice potato juice milk Spot B. IODINE TEST FOR STARCHES distilled water 0.05% glucose 1% glucose 5% flour solution apple juice potato juice milk Color orange Green Yellow light Blue blight Red and dark blue Red/orange Green Bive Color SECTION/GROUP: Amber Amber Amber Purple DATA: LABORATORY 3 Amber Green & Pieces Amber Positive or Negative? Negative Positive Positive Positive Positive Positive Positive Positive or Negative? Negative Negative Negative positive Negative positive Negative Laboratory 3 Macromolecules. 25 C. SUDAN TEST FOR LIPID Substance Tested water cream milk vegetable oil 5% flour solution D. BIURET TEST FOR PROTEIN Test tube milk distilled water egg albumin starch solution chicken broth apple juice gelatin Dissolved? (Yes/No) No Yes yes yes NO Color Blue Porple light Blue Purple Purple Yellow Purple Positive or Negative? Negative Positive Positive Positive Negative Positive or Negative? Negative Positive Negative Positive Positive Negative Positive DO-IT-YOURSELF BIOLOGY TESTING AN UNKNOWN You will perform four tests on each of the unknowns. Record your results in the following table. Based on the results, you will suggest their identity: reducing sugars, starch, lipid, or protein. The unknowns are labeled A, B, C and D. Before you test each unknown, develop your hypotheses regarding what results you expect to get for each of the four possible substances. E. CHEMICAL TESTING TO IDENTIFY AN UNKNOWN Benedict's Test lodine Test Sudan Test Unknown A B с D Neg Pos Neg Meg she g Pos Neg Neg Neg Neg Pos Biuret Test Pos Neg Unknown Identity protien Sugar Starch deg Neg lipid
Expert Answer:
Answer rating: 100% (QA)
IODINE TEST FOR STARCH 1It provides you with more control over the type of substances dissolved and ... View the full answer
Related Book For
Business Statistics
ISBN: 9780321925831
3rd Edition
Authors: Norean Sharpe, Richard Veaux, Paul Velleman
Posted Date:
Students also viewed these biology questions
-
What was the purpose of the European monetary system? Describe how it functioned and performed?
-
What do you believe was the purpose of the $1.5 billion senior secured revolving loan facility, and the $2.1 billion second lien bridge loan facility as part of the deal financing package?
-
What was the purpose of OODBMS products? Describe two reasons that OODBMS products were not successful.
-
Write the shear and momentfunctions and draw shear and moment diagrams for the following frames: (a) Support A is a roller, B and C are fixed and support C is a pin.
-
Paltrow Distributors is a growing company whose ability to raise capital has not been growing as quickly as its expanding assets and sales. Paltrow's local banker has indicated that the company...
-
You are given the equation(s) used to solve a problem. For each of these, you are to a. Write a realistic problem for which this is the correct equation(s). b. Finish the solution of the problem. 4.0...
-
How to prepare a deposition summary in different ways?
-
Sherwin Williams will receive $18,500 a year for the next 25 years as a result of a picture he has painted. If a discount rate of 12 percent is applied, should he be willing to sell out his future...
-
Suppose Alice and Bob are going to communicate using AES in CBC mode. Unfortunately Alice's message length (in bytes) is not a multiple of 16. Suppose the last block of her message is just a single...
-
What are the major causes of information risk? How can information risk be reduced?
-
what is the first stage of R(1O) if using data Eneryption Standard second stage R10 = 1110010111001011110111101000011101101111 01010010 K11= 00111010100010110010111111010010001110 1111111101 Select...
-
Bell Company produces stainless steel drink tumblers, Its only product. These tumblers are stamped with company logos and used as promotional items. Following are simplified job cost sheets for two...
-
Financial statements for Askew Industries for 2024 are shown below (in thousands):
-
Riverwood Accounting Company has the following account in its cost records: Work in Process Jones Audit Direct labor 2 0 0 , 0 0 0 Services completed 4 2 2 , 5 3 0 Project overhead 2 7 0 , 0 0 0...
-
Williams Group started a new business on September 1, 2021. That same day, Williams Group also received $430,000 of cash from issuing common stock and borrowed $230,000 from a friend. On September 1,...
-
How do HCOs operate--how are they governed, what do boards do and what challenges do they face? What are the responsibilities of an HCO manager? What responsibilities do HCOs have in promoting...
-
Managerial Accounting In any organization, it is important that the three activities namely (i) partition of decision rights, (ii) measurement of performance, and (iii) reward of performance must be...
-
Suppose that a flow network G = (V, E) violates the assumption that the network contains a path s t for all vertices V. Let u be a vertex for which there is no path s u t. Show that there must...
-
Recently, the International Gaming Technology company issued the following press release: (LAS VEGAS, Nev.)Cynthia Jay was smiling ear to ear as she walked into the news conference at the Desert Inn...
-
Consider the following data from a small bookstore. a) Prepare a scatterplot of Sales against Number of Sales People Working. b) What can you say about the direction of the association? c) What can...
-
For the confidence interval in Exercise 13: a) How large would the sample size have to be to cut the margin of error in half? b) About how large would the sample size have to be to cut the margin of...
-
United Technologies Corporation (UTC), based in Hartford, Connecticut, owns a wide variety of companies that operate in different businesses and industries. Some of the companies in UTCs portfolio...
-
How does the auditors professional duty of confidence affect disclosures to third parties?
-
When can auditors disclose unlawful acts to the police?
Study smarter with the SolutionInn App