AP Biology Lab: Catalase (Enzymes) Abstract In this laboratory exercise‚ studies of enzyme catalase‚ which accelerates the breakdown of hydrogen peroxide into water and oxygen. The purpose was to isolate catalase from starch and measure the rate of activity under different conditions. The laboratory was also conducted in association with a second laboratory that measured the effects of an inhibitor on the enzymes. Changes in temperature and pH along with Substrate Concentration and Enzyme
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Medical Sciences. Wiley‚ Chichester. APPENDIX- Safety Assessment 1. General Aspects Gloves must be worn at all times to protect from pigment staining. Safety glasses must also be worn throughout the lab to protect the eyes from chemicals. Potential injury may arise from razor blades and cork borers. Lab coats must be fully fastened to protect clothes from staining. 2. Chemical Hazards The solvents (acetone and methanol) should not be inhaled as it can cause damage to mucous membranes. They can also
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root tip of a plant spend a comparatively long time in the mitotic phase‚ whereas those cells comprising slow-growing tissues would spend most of their lives in interphase. Non-dividing cells remain in interphase and never enter the mitotic phase. (Lab Manual 64) Interphase is the synthesis of biological molecules including DNA and duplicated DNA with associated proteins. These comprise the chromatin that begin to condense toward the end of this phase‚ but are not yet visible. The nucleoplasm
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points with the various compounds. Materials needed to do the experiment 1. Bucket of Ice 2. Benzoic acid 3. Capillary tube 4. Mandelic acid 5. Rubber band 6. Vegetable oil 7. Unknown compound 8. Bunsen burner 9. Gram scale 10. Mortar and a piston 11. Mixture of benzoic and Mandelic acid 12. Micro-spatula 13. Thiele tube 14. Thermometer 15. Watch-glass Procedure The melting point will be observed with the use of a Thiele tube melting point apparatus
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When Chemicals React! Mr. Bell’s honors level chemistry class conducted an experiment during their lab demonstrations‚ this consisted of elements such as phosphorus and calcium chloride in their experiment. This along with another hydrogen based sunstance produced‚ what looked like a pinkish-looking substance inside of their flasks that were at their lab stations. Sophmore Kelly Caudel said‚ “ I actualley enjoy doing the experiments in this class‚ because it gives us a chance to get away from
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Name: ashley wible Exercise 11: Blood Analysis: Activity 2: Erythrocyte Sedimentation Rate Lab Report Pre-lab Quiz Results You scored 33% by answering 1 out of 3 questions correctly. 1. The erythrocyte sedimentation rate (ESR) Your answer : a. measures the settling of red blood cells (RBCs) in a sample of whole blood during one minute. Correct answer: c. is increased whenever fibrinogen and immunoglobulins cause the RBCs to clump together‚ stack up‚ and form a column. 2. The ESR cannot be
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dominant hand‚ break the toothpicks completely in half. Repeat this for 120 seconds and record the amount of broken toothpicks every 10 seconds. Break the toothpicks without looking. 5. Once broken‚ the "enzyme" must drop the toothpicks directly back into the same pile of unbroken toothpicks. 6. Choose one person to record the amount of broken toothpicks‚ the time (10 second intervals of 120)‚ and a person to count the toothpicks during the reactions. 7. Repeat steps 1-6 except the "enzyme’s" index
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Engine Lab Report Diesel Engine Load/N |Fuel Time/s |dH/mmH2O |Speed/r.p.m |Temp/℃ |Air consumption/kg/H |Fuel consumption/kg/H |Air-fuel ratio |Power/kw |Efficiency/ ％ | |40 |121.6 |17.5 |3018 |26.6 |130.16 |2.47 |52.7 |4.5 |0.019 | |80 |94.72 |17.5 |3009 |26.7 |130.14 |3.17 |41.05 |8.97 |0.059 | |125 |72.76 |17 |3009 |26.8 |128.25 |4.12 |31.13 |14.02 |0.111 | |171 |56.95 |17 |3000 |26.9 |128.23 |5.72 |24.33 |19.12 |0.161 | |212 |46.06 |16.5 |3006 |27.1 |126.28 |6.51 |19.40 |23.76 |0.202 | |232
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Name : Siti Zulaikha Binti Dahalan Matric. No : FIS 1307 3296 Name of Partner : Title of Experiment : Experiment 2‚ Uncertainty and Error Date Of Experiment : 1st October 2013 Course Name and Code : Physics Lab 1 (FP1021) Instructor’s name : Dr. Azah Nik Jaafar Objective 1. To measure Human Reaction Time 2. To find uncertainty and error of a measurement Apparatus 1. Ruler Theory Human Reaction Time is a measure of how quickly human can respond to a particular stimulus. This
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Name: Danielle Title: Unknown Lab Report Introduction: There are many reasons for identifying an unknown bacterium. The reasons range from medical purposes‚ such as determining if the unknown could cause ailments in living things or knowing what microorganisms are needed to make antibiotics. The experiment was done by applying methods in order to identify an unknown bacterium. An unknown bacterium was handed out by Dr. Honer. The appropriate tests were prepared and applied. The
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