life was very negative due to the unpredictable floods‚ and in Egypt without the river floodings there would be numerous famines. Moreover‚ in Mesopotamia they believed humans were inferior to the gods and they could never be sure what the gods might do to or for them‚ whereas in Egypt they believed religion provided them with a sense of security and timelessness. Mesopotamians were very scared of the gods and only obeyed them because they were scared of them.
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experiment shows the effects of changing the pH level has on Catalase. As predicted‚ the farther away the pH levels got from the optimum pH (7.2)‚ the lower the reaction rate. At a pH of 7.2‚ the foam of the reaction measures 6cm. At a ph of 3 it measures 2.5 cm‚ at a pH of 5 it measures 2.75 cm‚ at ph 9 it measures 2.3 and at 11cm it measures 2cm. pH measures the hydrogen ion concentration of a substrate. By changing the pH of the catalase‚ the enzyme was denatured. Denaturing is the result of altering
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produced the most oxygen of all three trials. Heat tends to increase the rate of chemical reactions‚ explained in the article Temperature Effects (Introduction to Enzymes) by Chris Jamison. “Like most chemical reactions‚ the rate of an enzyme-catalyzed reaction increases as the temperature is raised. A ten degree rise in temperature will increase the activity of most enzymes by 50 to 100% . Variations in reaction temperature as small as 1 or 2 degrees
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Both Plants and fungi affect the carbon cycle though they do it in different ways- both of them interfere with it while they are attempting to get food/energy to survive on. Each have adapted so they can live in an environment where they can source enough food to survive. They get these things from different sources so grow in very different conditions in order to survive. Plants live in places with lots of sunlight as well as a place where they can source water whereas fungi can live almost anywhere
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In the experiment‚ as the size of the cube decreased‚ the absorption rate increased‚ showing that the smaller cells absorbed more sodium hydroxide than bigger cells. The smaller cells were able to absorb more sodium hydroxide as they have a bigger surface area to volume ratio causing them to act more efficiently than the bigger cells. The smallest cell had a ratio of 1:12 while the biggest cell had a ratio of 1:2‚ leaving a gap of 5:12 causing the bigger cell to act less efficient in absorbing the
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potatoes and different sucrose concentrations (0.15‚ 0.20‚ 0.25‚ 0.30‚ 0.35 and 0.50). It was expected that the potatoes would lose weight as the potatoes would have lower water potential when placed in a solution ‚ and in this can be taken from the theory of osmosis which states that “the passive diffusion of water molecules across a selectively permeable membrane down a concentration gradient” (Taylor and Bruenn‚ 2009)‚ moving water from a high to a low concentration‚ so in this case water would
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Effects of Concentration Purpose: the purpose of this part of the lab is to see the effects of enzyme concentration on the reaction rate. Part 2: Effect of Substrate Concentration Purpose: The purpose of this part of the lab was to find the effect of substrate concentration on enzyme activity. Part 3: Effect of Temprature Purpose: The purpose of this part of the lab was to
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Computer Enzyme Action: Testing Catalase Activity 6A H2O2 is toxic to most living organisms. Many organisms are capable of enzymatically destroying the H2O2 before it can do much damage. H2O2 can be converted to oxygen and water‚ as follows: 2 H2O2 → 2 H2O + O2 Although this reaction occurs spontaneously‚ enzymes increase the rate considerably. At least two different enzymes are known to catalyze this reaction: catalase‚ found in animals and protists‚ and peroxidase‚ found in plants. A great
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Investigating the Effect of Enzyme Concentration on Pectinase in the Production of Fruit Juice In this practical‚ I shall demonstrate the relationship between the concentration of pectinase and the amount of fruit juice produced accordingly in proportion. Apparatus: Apples Pectinase solution 10 x filter paper Knife or kitchen mincer Glass rod Water bath X 1 250 ml beakers X 2 Wash bottle of distilled water 100 cm^3 measuring cylinders In the case
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scope to identify both independent and controlled variables. Although the general aim of the investigation may be given by the teacher‚ students must identify a focused problem or specific research question. Commonly‚ students will do this by modifying the general aim provided and indicating the variable(s) chosen for investigation. The teacher may suggest the general
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