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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body‚ as well as identifying the subcatergories of tissue types while observing them through the microscope and diagrams‚ and be able to explain the location and function of the tissue types in the body. There are not any real safety concerns for this lab other than making sure correct use and care of the microscope is used. EXERCISE 1: EPITHEILIAL TISSUE Epithelial Tissue Observations Tissue Type Observations Simple Squamous Single layer of cells‚ flat in appearance Simple Cuboidal Cells appear to be
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closer the heart rate should be to the resting heart rate of the Daphnia. Possible errors that could have gone wrong are the duration given to allow for the absorption of the different concentration of salt solutions due to the limited time during the lab period and the distinguishing of the separate heart beats and the inaccuracy of a constant time being off by points of a
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(100 ºC) and an acidic pH. Enzyme C produced the most maltose at 37 ºC (body temperature) and a pH of 7 (neutral). Conclusion In a prior lab‚ it was given that the enzyme Aspergillus oryzae (fungus) works best at warm temperatures and an acidic pH‚ porcine (pig) works best at body temperature (37 ºC) and
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Science Lab on Electromagnets By Caitlin Hendriks Factors that Affect the Strength of an Electromagnet Purpose: To test how two different factors‚ the number of loops and the current intensity‚ affect the strength of the magnetic field of an electromagnet. Materials: Power pack‚ 4 connecting wires‚ switch‚ ammeter‚ paperclips‚ iron nail‚ copper wire. PART A: TESTING THE NUMBER OF LOOPS Procedure: 1. Create an
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Introduction Human cilia play a critical part in human processes. Human cilia are hair-like projections that extend from the surface of a cell. Cilia are capable of rhythmic motion and acts together from separate strands so that the cell is capable of movement. Flagella are a whip-like structure that is found in cells as well that allow for the movement of the cell. Human cilia are characterized as having “metachronal rhythm" and this means is a rhythm that "changes time" to produce wave. The beating
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Results: Since the mass of the ball bearing used in this experiment was very light‚ 20 balls were measured and the result was divided by 20 for better accuracy. This procedure was repeated for the sizes and the results are as follows: Diameter (mm) Mass (kg) 2 0.04 3 0.075 4 0.11 To find out the densities of the three balls‚ the following formula was used: Density= (mass of the ball)/(Volume of the ball)= mass/(4/3 π r^3 ) Density of 2mm ball = (0.04⁄1000)/(4/3 π 〖(0.001)〗^3
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What do the chromic acid test results show? It shows the positivity that indicates the primary or secondary alcohol. 3. Compare results from both types of distillation? They gave the same results‚ so it is more accurate. Conclusion: During this lab I learn how to do simple and fractional distillation. Although the group I worked with only did simple distillation‚ I carefully observed how the group that did the fractional distillation. We collected all the results‚ to have a more precise range
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Hello all‚ I went into the lab and none of the Ps had notes of calibrations occurring during or between any of the task. P 24‚ 54 and 71 all have massive decreases from baseline to both task. The real problem is that with out a note of when calibration occurred there are three logical explanation for this. First‚ that they ran across campus and were not actually at baseline when baseline measures where taken thus leading to the decrease when they do finally calm down. Secondly‚ the machine could
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Determining the Catalytic Properties of the Enzyme Peroxidase Extracted from a Turnip Under the Conditions of Temperature‚ pH‚ Boiling and Competitive Inhibitors By Robin Caserta BIO 101 September 30‚ 2013 ABSTRACT The enzyme‚ peroxidase‚ extracted from a turnip was tested for its efficiency in binding to its substrate and its stability under several conditions. To do this‚ we tested effects on peroxidase activity‚ first‚ with different amounts of the enzyme‚ next at temperatures of
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