7 leaves on oily spot on broen poper a. triglyceride b. polypeptide c, polysocch

Question

7 leaves on oily spot on broen poper a. triglyceride b. polypeptide c, polysoccharide d. none of the above 8. Biuret turns violet a. potato b. onion c. egg white d. distilled water 9. Iodine potato turns a violet b. red c. blue-black d. orange 10. Albumin is an example of a a. carbohydrate b. fat c. protein d. none of the above 11. Glycerol and fatty acids are found in what type of nolece a. carbohydrate b. fat c. protein d none of the above 12. Peptide bonds are found in what type of molecule? a. carbohydrate b. fat c. protein d none of the above

Explanation / Answer

Answer:

7). a. Triglycerides

Explanation: Triglycerides are only fats but not polypeptides and polysaccharides

8). c. Egg white

Explanation: Biuret test is to detect proteins. Proteins are found in egg white.

9). c. Blue-black

Explanation:

Starch Test: Add Iodine-KI reagent to a solution or directly on a potato or other materials such as bread, crackers, or flour. A blue-black color results if starch is present. If starch amylose is not present, then the color will stay orange or yellow.

10). c. Prtoeins

11). b. Fat

12). c. Proteins

Explanation: Proteins are made of amino acids. The amino acids are held together by peptide bond.

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