INTRODUCTIONEnzymes are vitally important for every living organism‚ because without them the reactions within the cells would occur to slow to sustain life. However there are many factors which affect the rate of enzymes reactions. One of them is pH‚ which influence on the enzyme activity will be the subject of this investigation. Catalase of potato tuber cells will be the enzyme used in the experiment. RESEARCH QUESTIONWhat is the influence of different values of pH on the activity of catalase
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Analysis Graph 1 interprets the data shown on the table of results. The graph shows that the highest rate of reaction is at pH 7. This therefore supports my theory that at pH 7 the rate of reaction will be highest. This relate to other resources‚ such as books and the internet‚ which show that the optimum pH value for catalase is pH7‚ therefore there is no difference between the optimum pH and the pH used in the experiment‚ hence the enzyme structure is not affected by the pH and is most active
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through the Orifice plate and then through the Rotor meter. On leaving the Rotor meter the water flows via a control valve to the weigh-tank of the hydraulic bench. At the inlet and the outlet of each flow measuring device is a connection to the manometer board‚ this allows the head loss to be determined across each device. For an incompressible fluid flowing through a pipe the following equations apply: Continuity‚ Q=V1A1=V2A2 (1) Bernoulli’s P1ρg+V122g+z1=P2ρg+V222g+z2 (2)
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INTRODUCTION Nowadays‚ a Pitot tube would be of use as a speedometer on aeroplanes. It is also found useful in industries where velocity measurements are required‚ where an anemometer may not be the most efficient instrument to use. There are three types of pitot tubes: Pitot tubes‚ Static tubes‚ and Pitot-Static tubes. The simple pitot tube essentially consists of a tube bent at - usually - 90°‚ with an open end pointing directly towards the fluid flow. As the fluid flows in the tube‚ it becomes
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AP BIOLOGY Lab 5 Cellular Respiration Objective: To calculate the rate of CR from the data. To then relate gas production to respiration rate. Then test the rate of CR in germinating versus non-germinating seeds in a controlled experiment and then test the effect of temperature on the rate of CR in the germinating versus non-germinated seeds in a controlled experiment. Analysis: 1. The CR is higher in the germinating peas in the cold water rather than in the beads or non-germinating peas
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differently placed. These two types of generators will be used in order to experimentally research the efficiency of the water oxygenation process; an experimental setup was designed and built; the setup is endowed with modern instruments: oxygen meter‚ manometer‚ thermometer‚ all of them having digital display. The results of the experimental measurements will indicate the most favorable generator architecture from the point of view of the increase of concentration of oxygen dissolved in water. Keywords:
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loss. After finding out the data‚ the measured values of the static pressure head for each increasing flow rate is compared with the theoretical value‚ calculated by the Bernoulli’s equation. The head loss is also found by measuring the 8th manometer on the manometer panel whose difference each time will give the head loss. The difference between the measured and theoretical value of static head is then found out to be due to the frictional losses
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common apparatus is a constant volume thermometer. It consists of a bulb connected by a capillary tube to a manometer. The bulb is filled with a gas such that the volume of the gas in the bulb remains constant. The volume is related to temperature by k‚ known as Charles’s Law . The pressure of the gas in the bulb can be obtained by measuring the level difference in the two arms of the manometer. Gas thermometers are often used to calibrate other thermometers. Alcohol thermometer The Alcohol thermometer or spirit
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of nanotechnology and its uses‚ we must first get an understanding of what nanotechnology is. The size of a nanometer is a billionth of a meter‚ or 10-9 of a meter. To illustrate the size of a manometer‚ picture 100‚000 manometers as the thickness of a sheet of newspaper. It also takes 25‚000‚000 manometers to make up one inch. On a comparative scale‚ if a marble were a nanometer‚ then one meter would be the size of the Earth (What is Nanotechnology‚ retrieved 1/13/15). Everything around us is made
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The objective : 1. To determine the head loss and friction factor for laminar & turbulent flow in a smooth pipe over a range of Reynolds’s number . 2. To obtain the following relationships : a. Head loss as a function of the velocity of flow . b. Friction factor as a function of Reynolds number . Theory : The friction resistance to the flow of fluid through a pipe results in a loss of pressure energy for a given fluid flowing a long a given pipe‚ experiments show that for laminar flow
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