Essay about identification of macromolecules lab report bartleby. Our biology office is located at highland campus hlc. Most of the biochemical tests used in the following exercises rely on indicators, chemicals that change color when a specific substance is present. When you have completed your work, submit it to the dropbox entitled virtual macromolecule labs. Benedicts solution acts as a n indicator to glucose and turns the solution to a color red when it is heated and has glucose in them. What procedure could you use to check your answer to the previous question. Transparent, light blue, navy dark purple purplish blue, darkish blue light blue, really clear.
To test an unknown substance for sugar content, mix the substance with 12 times the amount of benedicts solution. The result would bring out a specific color change in the macromolecule. Choose from 500 different sets of post lab questions macromolecules testing answers flashcards on quizlet. Once there carefully read and follow instructions to test substances for the presence of the four macromolecules. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Chromatography mass spectrometer yes yes no yes macromolecules light blue no change mix water with biuret shake and set aside black tanpink liquid no benedicts.
Testing food for biological macromoleculesnutrients by. In our class we have been referring to them as macromolecules since they are necessary for life. Scientists then use certain tests to determine the presence of macromolecules. To see if these macromolecules are present in the unknown of aj, benedicts test, iodine test, biruet test, and sudan iii test allows us to identify the nutrients inside the unknown. Remote work advice from the largest allremote company. Test for fat sudan iii dye add a small amount of sudan dye to about 2 ml of water in a test tube. Identify classes of macromolecules and complete the following table as a hypothesis prior to beginning the lab testing. A biology laboratory exercise using macromolecule assays to. Lab 3 identifying macromolecules by angela martinez on prezi. To perform tests that detect the presence of carbohydrates, lipids, proteins, and. The three macromolecules we tested for were carbohydrates, proteins and fats. Analyze data from tests indicating the presence of sugar, starch, proteins, and lipids in unknown samples.
Visit the oklahoma community college website biology labs onlines organic molecules website. A color change would verify the sample positive for that macromolecule. View lab report macromolecules lab report from bio 101 at virginia. One characteristic of life is that living things are made up of molecules containing carbon. Identify classes of macromolecules and complete the. Then add 12 ml of vegetable oil known fat source to another test tube. Elvire nyake lab report macromolecules abstract this lab was done to test for macromolecules consisting of carbohydrates, lipids, proteins, and nucleic. Results from the testing of 4 solutions for organic compounds carbohydrates, lipids, and proteins. This lab was done to test for macromolecules consisting of carbohydrates, lipids, proteins, and nucleic acids by using specific reagents to test for each. The center for elearning multimedia team motion graphic eduardo rodriguez filming eduardo rodriguez, david cheng photography eduardo rodriguez video edit eduardo rodriguez audio. Each group of four students requires about 20 5ml test tubes in a rack.
428 1643 855 1100 1395 367 1100 1520 663 1045 418 870 1506 207 1525 444 586 1160 323 956 691 86 503 957 706 1481 1487 284 1092 639 832 1462 223 1403