BIOLOGY 114 MOLECULAR AND CELL BIOLOGY PRACTICAL MANUAL DEPARTMENT OF MICROBIAL‚ BIOCHEMICAL AND FOOD BIOTECHNOLOGY FACULTY OF NATURAL AND AGRICULTURAL SCIENCES UNIVERSITY OF THE FREE STATE 2012 Lecturers Prof. E. van Heerden Room 8 Department of Microbial‚ Biochemical and Food Biotechnology Prof. J. Albertyn Room 51 Department of Microbial‚ Biochemical and Food Biotechnology Practical time table Week Week begin Tutorial Tutoriaal Prac. and lecturer Prak
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Unit 1 Lesson 1 Key Question Biology SBI4U-C ILC 1) Mg2+ Has 10 electrons. 2) Carbon -14 would not be effective at dating bones that are millions of years old. Carbon -14 is effective at dating to a maximum of 40 000 to 50 000 years old. The isotope decays over time and would not be present on bones that are millions of years old. 3) Hydrolysis - Water used to breakdown molecules. Hydro means water and lysis means to breakdown. An example of hydrolysis in action within our bodies is how our
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In this lab activity students performed an experiment with the use of distilled water and baking soda solutions as control. The experimental controls are accuracy indicators of laboratory results. Thus‚ controls are important in a lab because the observation results are dependent on the controls. The experimental results can be determined to be valid when it is compared with the control solution. The higher the similarity between the results and the control solution‚ the more accurate the investigation
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Monosaccharides – General formula (CH2O)n Best known monosaccharide – C6H12O6 H O H HO OH Test for reducing sugars (Monosaccharide’s and some Disaccharides) * Add benedicts
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PUSAT PENGAJIAN TEKNOLOGI INDUSTRI IMG 103/3 FOOD CHEMISTRY LAB REPORT Experiment 3 : Qualitative Test for Carbohydrate Date of Experiment: 27/03/2013 Date of Submission: 17/04/2013 Submitted by: Name: Te Hui Min Matric No.: 115615 Group: 4 Title Qualitative test for carbohydrate Introduction Carbohydrates are essential in foods as an energy source (starch is the main source of human calories)‚ a flavouring (simple sugars are usually sweet) and as a functional
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Carbohydrates‚ Proteins‚ lipids‚ and nucleic Acid Lab Exercise 6 Date: 9/17/12 Bio 102-11 Purpose the purpose of this experiment was to perform test to detect the presence of carbohydrates‚ proteins‚ lipids‚ and nucleic acids. Explain the importance of a positive and a negative control in biochemical test. Use biochemical test to identify an unknown compound. Background Most organic compounds in living organisms are carbohydrates‚ proteins‚ lipids‚ and nucleic acids they are called macromolecules
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protein and sugar. This is the prediction because the belief is that Sample B is milk or cheese therefore containing lactose‚ fat‚ and protein. Methods Materials: 14 test tubes‚ 1 test tube rack‚ 1 paper towel‚ 5 ml Benedicts solution‚ .5 ml Iodine solution‚ 2 ml Biuret reagent‚ hot plate‚ samples 1-5‚ A‚ and B. Procedure: Obtain materials‚ Label the test tubes 1-5 ad A and B
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In the starch test‚ the objective was to find the substances that contain starch. In the starch test‚ iodine was used. In the reducing sugar test‚ the objective was to find the test materials that have a reducing sugar. In the reducing sugar test benedicts was used. In the grease spot test‚ the objective was to find all the samples that had a lipid. Another one of the lipid tests were the dye test which was a more specific test to find the substances that all contained a fat by using a solution of
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These 4 Biomolecules were tested within the foods applesauce‚ peas‚ and turkey gravy. These biomolecules were identified using the solution indicators for the Biomolecules which are respectively designated for each biomolecule. Iodine for Starch‚ Benedicts for Sugar‚ Biurets for Protein‚ and a brown paper bag for Lipids. The biomolecules were observed when the food and indicators were combined‚ the solution then turned a color designating a specific biomolecule. Protein turns purple‚ Iodine turns black/blue
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CHEMISTRY PROJECT Submitted by- Submitted To- ACKNOWLEDGEMENT I would like to thank for her help and guidance in the completion of the project and also for giving me the opportunity to learn so much through this project. Also‚ my sincere thanks to for the support and encouragement she shows by providing us with such an opportunity. CERTIFICATE It is hereby to certify that original and genuine investigatory
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