Case i, 2h2o+o2 on the effect of ph on enzyme activity (aerobic bubble generation, with more evidence of high h2o2 enzyme activity)1 and associated principles: h2o2 enzyme 2h2o2 2 and design experiments (1) material appliance: fresh pig liver grinding fluid (with h2o2 enzymes) 3% h2o2 solution distillation 5% naoh solution 5% hydrochloric acid 5% naoh test tube 5% drip tube tube tube test tube and ph test kit 2) 1. Design questions: (how does h2o2 enzymes contribute to the decomposition of h2o2 in different ph environments, thus detecting whether the viability of h2o2 is affected by ph) 1. What is the reaction base of 2 ml? 3. How many different phs are in place, so what substance 1 ml should be added? 4. Add two drops of enzyme? 5. Watch what happens
2. Determination of enzyme activity? One of the students designed the three test tubes 123 and h2o22ml1ml2ml to add two drops and two drops to the liver grinding fluid (with h2o2 enzymes) to retort 1 ml5% hcl2 drop 5% naoh2 drops to modify the three test results 123 why? (5) concluding: ii. Explore the effect of temperature on enzyme activity 1. Relevant principles: starchase malt sugar starch powder blue starch + iodium liquid (the less blue or blue, the higher the enzyme activity). The lower the starch, the higher the enzyme activity, and the lower it is.) 2. Design experiments: 1) material tools: a starch solution, diluted saliva (saliva-containing starch enzymes at the highest temperature of 37) hot water distilled water, distilled water, iodised water, iodized fluids, test tubes, cups, alcohol lamps, thermometers, etc.) 2. Designing groups of experiments? Which temperature will you set to make the difference between the groups clearer? 3. How to observe or detect enzyme activity? Experimental steps to explore the effects of temperature on saliva starchase activity: 1:2:3:4:5:6. 7 the results of the starch 1 ml(4) analysis: which test tube enzymes are the most active? Why? (5) conclusion: (note: part of the material and information comes from the network for information. Please preview before downloading, and look forward to your comments and attention
