My lab group studied the effect of PH on reaction rate/ enzyme activity measured by foam height. PH is the measure of the concentration of hydrogen ions in a solution. The higher the hydrogen ion concentration‚ the lower the pH. Every enzyme has an optimal PH‚ meaning they have a very small window in which they are most active. Our enzyme (potato smoothie) had an optimal PH of 7.0-7.5. We know this because we measured the enzyme’s reaction rate by measuring foam height. The largest foam height we
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EFFECT OF CHANGES IN TEMPERATURE AND SDS CONCENTRATION ON THE STRUCTURE OF BEETROOT CELL MEMBRANES. Introduction Cellular Membranes or cell membranes are biological membranes that separate the interior of a cell from the outside environment. Cell membranes are selectively permeable to ions and some molecules and control the movement of substances in and out of the cell. (Danyk‚ 2013/14) Cell membranes separate and organize chemicals and reactions within cells by allowing selective passage
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Investigating the Effect of Concentration on the Rate of Enzyme Catalysed Reaction To investigate the effect of concentration on the rate of enzyme catalysed reaction I must know all the factors that affect it in order to investigate in this. Here are all the factors: Temperature- Enzyme like it warm but not too hot. Enzymes are biological catalysts‚ which speed up chemical reactions. They work most efficiently at the optimum point (37°C). If they are below 37°C they will work
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Auschwitz was a concentration camp established in 1940 by the Nazis. The Nazis sent the Jews and other "undesirable" people here to be used as slaves or to be killed. It was located in Oswiecim‚ Poland. There was no privacy when the captives had to go to the washroom. Buckets and toilets were lined up in rows‚ and the toilets were often broken and flooded with urine and feces. Although the prisoners were exhausted due to hard work‚ sleeping was difficult because the bunks were made out of wood. The
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organism. With the shape of the active site changed the enzyme is unable to perform the "lock and key" action the enzyme is meant to do in order to catalyse a reaction. The specified enzyme is shaped to "lock" on to the substrate. Where the enzyme contacts the substrate is called the active site. When the enzyme becomes denatured the shape of the active site has changed and the enzyme is no longer as efficient. The enzyme can become so deformed that the protein molecule begins to unravel
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Glomerular Filtration The following questions refer to Activity 1: Investigating the Effect of Flow Tube Radius on Glomerular Filtration. 1. Describe the effect of increasing the afferent radius on glomerular filtration rate and glomerular pressure. As the afferent radius increases the glomerular filtration rate and glomerular pressure both increase the pressure in slow steps the filtration rate greatly increases. 2. Describe the effect of decreasing the efferent radius on glomerular filtration
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HINTS ON WRITING YOUR REPORT Title: Enzyme activity Objective: To investigate the effect of temperature on amylase activity Design principle Background: Amylase activity products? (show the equation) Which factors will affect enzyme activity? How to study the rate of reaction? (e.g. rate of disappearance of substrates or rate of formation of products) Independent variable: temperature of reaction mixture or at which the enzymatic reaction occurs. It can be varied by setting water bath at
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Science IA Rough Draft The Effect of Temperature on The Activity of The Enzyme Catalase Introductions: Enzmyes are proteins that catalyze chemical reactions. All living things have catalase present in them. Catalase is a common HYPERLINK "http://en.wikipedia.org/wiki/Enzyme" enzyme found in nearly all living organisms that are exposed to oxygen‚ where it HYPERLINK "http://en.wikipedia.org/wiki/Catalyst" catalyzes the decomposition of HYPERLINK "http://en.wikipedia.org/wiki/Hydrogen_peroxide"
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I believe that extra-curricular activities have an effect on teenage drug and alcohol use. I feel that the more extra-curricular activities people are involved in‚ whether those activities are clubs‚ sports‚ dance‚ hanging out with friends‚ community service‚ etc. that those people are less likely to use drugs and alcohol. However‚ the people who are not really involved in extra-curricular activities are more likely to use drugs and alcohol. The more activities and less free times a person has in
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Psychology Assignment TASK 1 Physical Activity is beneficial to society in many different ways‚ there are many organisations working to promote sport to everyone‚ no matter what their age‚ gender‚ background or ability. One of these organisations is called ’StreetGames ’‚ they particularly target children from underprivileged background and encourage them to get involved in sport and physical activities. This helps to keep crime levels down by keeping teenagers off the street and giving them
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