Investigating a factor that affects the rate of enzyme activity Enzymes speed up reactions. They have an area with a very particular shape called the ‘active site’. When the right molecule comes along (substrate molecule) it will fit perfectly into the active site and there will be a reaction. After the reaction the products then leave the active site. This process is often referred to as the lock and key theory as only one enzyme can carry out one type of reaction. The catalase enzyme speeds
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different beakers with saran wrap over the top of each beaker. Materials: 3 potatoes Potato peeler 3; 500mL beakers 300mL of salt 300mL water 50 drops of iodine Saran wrap Safety goggles Triple beam balance Procedure: 1. Gather materials above 2. Put on goggles 3. Be safe 4. Peel three potatoes over garbage 5. Take mass of each potato 6. Record 7. Put three potatoes in three different beakers 8. Leave one potato in just the beaker (control)
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of new compounds. In this experiment‚ t-amyl alcohol will be converted by a SN1 mechanism to 2-chloro-2-methylbutane. Safety Precautions Concentrated Hydrochloric Acid is 12M. It will cause visible destruction of tissue upon contact. Wear eye goggles at all times during this experiment. Keep HCl away from skin‚ clothes‚ eyes. Neutralize any spilled HCl with sodium bicarbonate (baking soda) and wipe up immediately. Gasses will be released when sodium bicarbonate is added to your separatory funnel
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Lab Safety Report By: CHM 114 Laboratory Fall 2014 Tuesday Lab 08/09/14 Splash Goggles: Safety is by far the most important thing when working in a chemical laboratory. There are over thousands of injuries that occur each year that are partially non-preventable‚ but a great majority are preventable accidents that could have been solved with simple lab safety. One of the most critical pieces of lab safety would have to be wearing eye protection. Eye protection could save your vision
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Use fire extinguisher 5. There should NEVER be an occasion where a student in the biology lab should have to use the eye wash. Explain why. This shouldn’t happen because if the student follows the lab rules he would be wearing safety goggles in order to avoid chemicals from entering their eyes. 6. If for some strange reason you get chemicals in your eye‚ how long must you wash your eye in the eye wash? 15 minutes. 7. What are the three most important things you should
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Penny Goggles HCl Filler Distilled Water Method: Note that HCl is an acid and must be cautious around this acid for it can burn your eyes so wear goggles‚ and wash hands after the lab. 1. Retrieve a penny that is post 1983
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Goggles will protect your eyes from the hazards associated with snowboarding‚ including harmful UV rays‚ wind‚ snow and ice. Gloves‚ Hat and Thermal Underwear - As with the thermal pants and jacket‚ it is essential that you wear thermal underwear and thick
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overlapped everyone in my 4 laps of biking. I need to transition from biking to swimming fast so I don’t lose my lead. But first‚ I need my goggles. I look down the road from the easy obstacles and see another biker come down the road. I scan the area and spot my dad. I wave to my dad. “Hand me my goggles!” I yell to my dad as he hurries over to me. He shoves the goggles into my hands so hard‚ I nearly have to regain my balance. I pull the elastic bands and tighten them over my head as I jog towards the
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Universal Precautions Universal precautions refers to the practice‚ in medicine‚ of avoiding contact with patients’ bodily fluids‚ by means of the wearing of nonporous articles such as medical gloves‚ goggles‚ and face shields. The practice was introduced in 1985–88.[1][2] In 1987‚ the practice of universal precautions was adjusted by a set of rules known as body substance isolation. In 1996‚ both practices were replaced by the latest approach known as standard precautions (health care). Nowadays
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INTRODUCTION TO DROSOPHILA GENETICS DROSOPHILA CULTURE We will study basic principles of Mendelian inheritance with the use of the fruit fly‚ Drosophila melanogaster [the name means “black-bodied fruit-lover”]. Drosophila was one of the first organisms to be studied genetically: its small size‚ short life cycle (10 ~14 days at 25oC)‚ high reproductive rate (an adult female can lay 400-500 eggs in 10 days)‚ and ease of culture and genetic manipulation have made it perhaps the best understood animal
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