clear. From this experiment I learnt that the bigger the size of the jelly is the more time its going to take for the colour change to take place‚ the colour change represents the rate of diffusion‚ the smaller the block of jelly is the less time its going to take for the colour change to take place which means the rate of diffusion
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Enzymes are catalysts that increase the rate of chemical reactions organisms‚ allowing cells to break or build things instantly. The structure of an enzyme is essential to its function. Enzymes are proteins‚ made up of 100-1000 amino acids bonded together in chains. These chains are folded/coiled into a unique 3-D structure that allows them to bind to a reactant‚ called a substrate at an active site. Enzymes are flexible‚ and therefore can change it’s shape to better accommodate its substrate; this
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coagulate‚ the independent was the temperature of the water bath and the control was the deionised water and milk solution. These variables allowed for the experiment to be conducted accurately‚ with unexpected results. This is due to the enzymes being most active at 60ᵒC‚ it was that results were going to be most active at the 41ᵒC which is close to human body temperature. When we compare the enzyme in the low temperatures to the enzymes in the higher temperature we observed that the enzymes were
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and more popular. The U.S. alone now produces billions of cans and jars of food each year. Canning‚ when done correctly‚ is so safe that a four-pound veal roast‚ canned in 1824 and opened in 1938‚ was fed to 12 rats for ten days without ill effect. The process was perfected well enough by then to result in a safe product. Why Food Is Preserved Unless food is preserved‚ it spoils soon after harvest or slaughter. This spoilage is caused by:
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Enzyme Activity How does temperature affect enzyme activity? In this practical investigation‚ my aim is to discover how temperature will affect enzyme activity‚ by looking at the rate of reaction. I predict that the higher the temperature will be‚ the faster the reactions take place. However‚ I also think that there will be an optimum temperature‚ at which the reaction will work at its fastest; if the temperature goes beyond that‚ the reactions will stop altogether as the enzymes would have
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be seen in the graph‚ the higher the temperature the shorter the time is for the Sulphur to be created. If it is looked as one continuous line‚ the first part of the trend line shows a steep‚ straight and constant decrease; then the 2nd part is not as steep and has a more gradual decline. Moreover‚ it shows how a reaction at 20°C a slower time for the cross to disappear compared to 40°C and especially 60°C. Both graphs show how temperature has a great effect on the speed of sulfur formation covering
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‘Kinetics’ is the study of chemical reactions. The speed of a reaction can vary depending on many variables such as the nature of the reactants‚ particle size‚ concentration and temperature. For a chemical reaction to occur‚ there must be a collision between reactants. The reaction rate is slower when the reactants are large and complex molecules because it takes longer for the molecules to combine together creating a chemical reaction. More than 2000 years ago‚ Democritus‚ who was a philosopher
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Description To investigate whether temperature will damage and denature the permeability of plasma membrane. Preview TITLE The effect of temperature on the cell membranes of Beetroot cells. OBJECTIVES To investigate whether temperature will damage and denature the permeability of plasma membrane. HYPOTHESIS An increase in temperature will damage and denature the permeability of plasma membrane. INTRODUCTIONS Beetroot The beet (Beta vulgaris) is a plant in the Chenopodiaceae family
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Cardiovascular Physiology: Activity 3: Examining the Effect of Temperature on Heart Rate Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. Organisms that usually maintain the same internal body temperature in spite of environmental temperature changes are You correctly answered: c. homeothermic. 2. The general name for the process that maintains the internal body temperature in humans is You correctly answered: a. homeostasis. 3. The electrolytes in
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LAB ACTIVITY: Coastal and Continental Temperature Ranges ANALYSIS: 1) I can tell from the temperature curves that the cities are all in the Northern Hemisphere because it ranges from low to high then back to low again starting in January. 2) The city that has the greatest yearly temperature range is Bismarck‚ N.D. 3) The cause of the greatest range is because the location is located most near the pole. 4) The rates of heating and cooling do not differ much for New York
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