Lab 4 - macromolecules overview in addition to water and minerals, living things contain a variety of organic molecules most of the organic molecules in living organisms are of 4 basic types: carbohydrate, protein, lipid and nucleic acid. Lab #12: digestive physiology p3 ingested protein, but more importantly pepsinogen molecules will partially digest one another, removing inhibitory segments of the. This lab reinforces the differences in the properties of the various types of follow the procedures for the macromolecule test and for each procedure test the. Organic macromolecules in living organisms can be classified as either carbohydrates, proteins, lipids, or nucleic acids, among others these macromolecules are always made of smaller subunits these macromolecules are always made of smaller subunits. Introduction the biuret test is a chemical test used to detect the presence of peptide bond biuret¶s reagent is made of sodium hydroxide and copper (ii) sulphate in a positive test, copper (ii) ion is reduced to copper (i) ion, which forms a complex with the nitrogen and carbon of the peptide bond in an alkaline solution.
Bio10 lab 3 enzymes and ph 31 6 mix the rennin and milk to start the enzyme reactions a with a clean squeeze bulb, put 3 drops of rennin solution from the cold tube of rennin into the cold milk. Sharp, 2011 starch was present in test tube #8 (control for starch) and glycogen was present in test tube #7 (control for glycogen) the results that one obtains from this experiment closely match the results of other groups when compared during lab. Macromolecules directions: click the button to the left of the single best answer you may reset all the answers by pressing the reset button click the grade it button when you are finished.
Biological molecules: carbohydrates, lipids, proteins by the end of this lab, the student should be able to: identify the functional groups for each of the biomolecules that react in the following biochemical tests: benedict's test, iodine test, brown bag test, sudan iii/iv test, and the biuret's test. Testing for macromolecules this lab report testing for macromolecules and other 64,000+ term papers, college essay examples and free essays are available now on reviewessayscom autor: surina dulat • october 15, 2016 • lab report • 1,545 words (7 pages) • 933 views. Bio lab 1 essay lab 1 1 describe the function of the following pieces of safety equipment and how each might be used: (10 points) a eye wash (2 points) if chemicals splash into your eye the eye wash station is used to flood the eye with water for 15 to 30 minutes to wash the chemicals out of your eye. Biology lab report ( test for organic compunds ) documents similar to biological macromolecules lab report biological macromolecules uploaded by api-242369585.
Start studying macromolecules lab learn vocabulary, terms, and more with flashcards, games, and other study tools. Multiple-multiple choice- there are four organic compounds labeled a-d next there are several statements if the statement descriges compound a, then mark that letter to the right of the statement, if b, mark the b etc note: each statement may refer to one, some, all or none ot the organic compunds listed. Testing macromolecules lab p 3 lipids lipids are nonpolar and therefore do not dissolve in water cm of cream and 1 2 3 table 3 test tubes vegetable oil and sudan iv. Macromolecules in food lab purpose: to investigate three of the biological macromolecules by testing for the presence of starches (carbohydrate), proteins, and lipids in foods.
Lipids lab: list the steps and reagent used to test for lipids: what does a positive test reaction look like foods: perform the carbohydrate, protein and lipids tests on the foods shown and. This lab report identifying macromolecules in solutions and other 64,000+ term papers, college essay examples and free essays are available now on reviewessayscom autor: dbajic10 • october 12, 2015 • lab report • 1,663 words (7 pages) • 1,276 views. September 6: effects of acid rain lab- measurements and conclusions, effects of acid rain lab report, biochemistry unit organizer. Pre-lab 6: biochemical testing of macromolecules (10 pts) testing of biomolecules procedure/report 1 macromolecules 2 perform chemical tests to identify the.
Control/negative test (water), and the fourth will be the positive test for polysaccharides 16) in the third test tube, add 5 drops of water 17) next, add 5 drops of iodine to the third tube. While some of these compounds can be detected by taste tests, many cannot scientists then use certain tests to determine the presence of macromolecules in doing the lab, one was able to determine the characteristics of the given solutions, containing different macromolecules, whilst doing the multiple tests. Scientists use chemical assays to test for the presence of a certain molecule or a class of molecules often the test (or the assay) will lab 4 macromolecules.
In this review i provide information on the different detection tests that we performed to determine if certain macromolecules were present in our experimental solutions. In this lesson students will complete a lab using indicators to determine which foods contain carbohydrates, lipids, proteins, and/or starches the lab includes pre-lab questions, discussion, lab experimentation, post lab questions, results and conclusion. Test tube as follows: 10 drops of biuret solution, 3 ml of benedict's solution (the test tube was heated and then cooled as described above), 5 drops of lugol's iodine solution, 8 drops of indophenol, and 5 drops of silver nitrate solution.