INVESTIGATING CIRCULAR MOTION 11/3/04 AIM To examine some of the factors affecting the motion of an object undergoing uniform circular motion‚ and then to determine the quantitative relationship between the variables of force‚ velocity and radius. APPARATUS Rubber bung Metre rule 50 gram slot masses Glass tube 50-gram mass carrier 50-gram slot masses Metre rule Stopwatch Sticky tape Metre rule String THEORY As in Jacaranda HSC Science Physics 2 p.54 In this experiment when the rubber bung
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Investigating Specific Environments Abstract: The thing that I did was analyze soil to see if bacteria could live in that environment. The reason why I did it was because I wanted to find out where in the environment bacteria and fungi can live. In order to do my study I had to collect a sample of soil and put it in a dish. After I did that I could look at it underneath a microscope. I found that bacteria did in fact live in the soil so the soil was a sustainable environment for the bacteria
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objectives of this experiment were to investigate the activity of enzymes‚ components that influence the enzyme’s activity‚ identify an unknown phosphatase‚ influence of inhibitors‚ and determine if inhibition is competitive or noncompetitive. A spectrophotometer evaluated the measurement of color change over a period time due to product being formed. Determining unknown phosphatase and effects from different inhibitors were determined by varying the pH and substrate concentrations. The unknown phosphatase
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LABORATORY REPORT Activity: Enzyme Activity Name: Daniel Franco Instructor: Professor Jennifer Frere Date: 03.08.2015 Predictions Sucrase will have the greatest activity at pH 6 Sucrase will have the greatest activity at 60 °C (140 °F) Sucrase activity decreases with increasing sucrose concentration Materials and Methods Effect of pH on Enzyme Activity Dependent Variable amount of product (glucose and fructose) produced Independent Variable pH Controlled Variables temperature‚ amount of
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3.8.3. Effect of temperature of the reaction: The effect of the temperature of the reaction on the activity of the purified enzyme was carried out by make the enzymatic reaction for 10 minutes at different temperature 25‚30‚35‚40‚45‚50‚60 and 70°C using an enzyme protein 0.1mg/reaction mixture and substrate concentration of 15 mg/reaction mixture‚ using a control of previously heated enzyme solution in the reaction. The data recorded in (table 27) and (figure 29) illustrate the effect of temperature
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Enzymes are catalysts that are used to speed up chemical reactions. Adding inorganic catalysts to reactants increase the rate of most chemical reactions. However‚ all enzymes are different and there are numerous amounts. Many enzymes are essential for life and reactions would not happen rapidly to maintain life with the help of enzymes. Specific enzymes lower the activation energy for specific reactions and shapes. Activation energy is required to start a chemical reaction. This occurs when energy
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AIR POLLUTION IN THE PHILIPPINES Guides and Tips Home / Blog / Air Pollution in the Philippines Air pollution is a common and frequent problem nowadays. When you are on your way to work‚ you pass by your neighbors’ backyard where he is currently burning their garbage from yesterday‚ then you come across a smoke-belching public utility vehicle‚ then a guy beside you lighted a cigarette and started suffocating you with second-hand smoke. You cannot always depend on your handkerchief on covering
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Enzyme Lab Introduction/ Abstract An enzyme is a substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction. They are mainly made up of proteins and can tremendously speed up reactions. E. coli ( a bacterium) has about 1‚000 different types of enzymes floating around in its cytoplasm at any given time. Enzymes can be used to join and even break up molecules as shown in the diagram below. (1)
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Title: Catalase enzyme detection Objective: To understand the function of catalase in cells that produce the enzyme‚ interpret the results of a catalase test and know their value in differentiating bacteria. Materials: 1 clean microscopic slide‚ 3% H2O2 solution‚ swabs. Micrococcus luteus‚ Enterococcus faecalis‚ patient G Procedure: 1) Scrape some cells off from each bateria to the slant and place them on glass slide. 2) Place one or two drops of H2O2. Watch for bubbling as an indication of
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Question Give an account of how enzymes work with particular reference to factors that affect their activities. Answer All living things require catalysts to catalyse the reaction which they carry out to survive. Enzymes are the catalysts of biological systems without enzymes reactions in cells would occur all much to slow a rate and the organism would not survive. Most enzymes‚ with the exception of some RNA catalysts‚ are proteins. They often require a co factor such as zinc or iron‚ or a complete organic
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