How light intensity effects the Rate of photo synthesis. Aim The aim of my experiment is to find out how light intensity affects the rate of photosynthesis. Prediction I predict that as the light intensity increases that the rate of photosynthesis will increase in proportion‚ so for example if you increase the light intensity from 10cm away to 20 cm away form a stationary plant. There for the rate of photosynthesis will decrease proportionally with the distance of the light from the plant (in
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The Effects of Caffeine on the Heart Rate of Daphnia This lab was designed to show how caffeine affected the heart rate of daphnia after exposing them to different concentrations of caffeine for ten minutes. Caffeine is a stimulant‚ which‚ in humans‚ causes heart rates and blood pressure to increase. Its effects range from mild alertness to heightened anxiety and body tension. We wanted to see if caffeine affected the daphnia’s heart rate in the same way. We filled three containers with three different
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MANAGEMENT CASE describes a real-life situation faced‚ a decision or action taken by an individual manager or by an organization at the strategic‚ functional or operational level HCL: Facing the Challenge of the Laptop Market Jaydeep Mukherjee and Mahalingam Sundararajan M r. Ajai Chowdhry‚ Chairman and CEO at HCL Infosystems Limited‚ a major technology hardware player in India‚ was pondering upon the company’s marketing strategies to build its laptop sales in 2010-111. Driven by powerful
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1. Is Jennifer right about the need to evaluate the workers formally? The managers? Why or why not? Jennifer is absolutely correct in having these employee evaluations done formally. Reason for is to protect Carter Cleaning Company and its business goals from discrimination charges or violations of Title VII of the 1964 Civil rights Act. Informal evaluations can lead to unfair appraisals which can open a can of unexpected problems. All employees should receive formal evaluations via by paper or
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different individual factors. However‚ with the overall averages at 237 for no distractions compared to 315 for distractions‚ our team’s hypothesis still holds true that distractions greatly affect reaction time. Our experiment demonstrated to us that there are two factors intertwined in influencing reaction time: the distraction itself and the individual’s ability to react while distracted. For example‚ a cellphone app and the individual’s ability to use that app. This is evident by our second participant
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Introduction We are going to do an experiment to see how surface area effects the rate of reaction when added to hydrochloric acid. I will add calcium carbonate (marble chips) to hydrochloric acid. When calcium carbonate is added to hydrochloric acid a reaction takes place. The solution fizzes and gives off the gas carbon dioxide. I will collect this gas in a gas syringe and will time how long it takes for the reaction to produce 100cm3 of carbon dioxide. CaCO3 +2HCL Co2 +CaCl2 +H2O CalciumHydrochloricCarbonCalciumWater
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Also‚ write down the number of protons and neutrons for each. Finally‚ write the symbols (with mass no. and atomic no.) 5) Why have all Group 7 elements (halogens) got similar chemical properties? 6) Draw how ionic bonding occurs in LiCl‚ MgO and Mg Cl2. 7) Draw how covalent bonding occurs in CH4‚ F2 and H20 (H-O-H). 8) Balance this equation: C3H8 + O2 ---------> CO2 + H2O. Then‚ work out the masses each side to prove they are the same. (C = 12; H = 1; O = 16). 9) Write the name and formula
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Chemical reactions can happen slowly or fast. The speed of the reaction rate can be changed. Some of the factors that can affect the reaction rate are surface area‚ temperature‚ and concentration and pressure. Surface area is the exposed‚ outer layer of a solid. Increased surface area increases reaction rate because more particles on the surface of a solid come in contact with the particles of another substance. For example‚ if you place a donut stick into water‚ the donut will react slowly with
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Introduction Over the course of several weeks‚ myself and my fellow classmates have been researching and conducting an experiment that focuses on the effect of ascorbate peroxidase (a.p) as well as salt stress at different levels of concentrations on Abelmoschus esculentus (okra). Okra is a plant that is composed of 87.1% of water. In addition to being made mostly of water this highly nutritious vegetable is also composed of 0.2% of fat‚ 9.7% of carbohydrate‚ 2.2 % protein‚ 1.0 % fiber‚ and 0
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up the rate of reaction without itself being used up in the process. Enzymes provide an alternate reaction pathway by lowering the activation energy needed for a reaction to occur. For two molecules to react they must collide with each other‚ however‚ they have to collide with sufficient energy. Sufficient energy means that between them they have enough energy to overcome the energy barrier to reaction. This is called the activation energy. Even though enzymes can alter the rate of reaction‚ they
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