Experiment to investigate the effect of concentration of electrolyte on the current of voltaic cell Aim The aim is to identify the relationship between the concentration of H2SO4 solution and the current of Cu-Zn voltaic cell. Hypothesis My hypothesis is that the greater the concentration of sulfuric acid the bigger the current of the voltaic cell. In a voltaic cell‚ chemical energy is concerted to electrical though the oxidation and reduction happen on the electrodes. Current will not flow
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Measuring the Effect of Light Intensity on Photosynthesis Introduction Photosynthesis captures energy from sunlight. Plants‚ algae‚ and some bacteria use the energy captured during photosynthesis for their metabolic reactions. During photosynthesis in plants‚ chlorophyll and enzymes in leaves convert certain wavelengths of light into chemical energy. A simple equation can be used to represent photosynthesis. Enzymes and Chlorophyll light energy CO2 H2O carbohydrate O2 In this investigation
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Photosynthesis Background Do you know what is the most important process that sustains life? Photosynthesis‚ that is the correct answer! Photosynthesis‚ is known as the process to produce plant food. But‚ how does is the life exist on the planet we call our home‚ Earth? Photosynthesis is a process that we know that allows water‚ carbon dioxide‚ and some mineral salts along with the light from the sun to make glucose (sugar). During the process‚ the root sytem of the plant takes in elements
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Abstract: Two parts of this lab were performed involving photosynthesis and cellular respiration. The first part of the lab consisted of cutting out spinach leaf disks with a straw and then putting them into syringes containing an infiltration solution and sodium bicarbonate. Then the syringes were place under the presence of light and watched as certain disks floated. This part of the lab consisted of watching photosynthesis take place. Then for the second part of the lab we tested cellular respiration
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he process of converting light energy captured from the sun into chemical energy that can be used to synthesis glucose is called photosynthesis. This process is used by plants and other organisms for synthesis of lipids and amino acids or can be metabolized during cellular respiration to produce ATP. This process takes place in chloroplasts‚ which is a plastid that contains chlorophyll and involves two interlinked reactions‚ which are light dependent reactions and light independent reactions. Throughout
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increasing the concentration of the anode‚ zinc sulfate‚ will increases the rate of reaction for oxidation because there are more zinc ions in the new concentration‚ which would also increase the collision between molecules. This will eventually allow an increase in the transferring rate of electrons to the cathode‚ as there are certainly
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Assessment Research Question: How does the number of sit-ups affect your heart rate. Independent Variable (IV): Number of sit-ups ( 0‚5‚10‚15‚20). I chose these 5 increments because they are consistent numbers in which everyone can participate without it being to much. Dependent Variable: heart rate( BPM) +/- 4 ( number of beats in 15 seconds multiplied by 4). Materials: timer‚ flat surface‚ movable clothing Background: In this experiment I will test your heart rate and if it increases or decreases
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INTENSITY OF OFFICIAL FUTSAL MATCHES ´ VINICIUS M. RODRIGUES‚1 GUILHERME P. RAMOS‚1 THIAGO T. MENDES‚1‚2 CHRISTIAN E.T. CABIDO‚1 ELINEY S. MELO‚1‚3 LUCIANO A. CONDESSA‚1 DANIEL B. COELHO‚1 AND EMERSON S. GARCIA1 1 Laboratory of Exercise Physiology‚ School of Physical Education‚ Physical Therapy and Occupational Therapy‚ Federal University of Minas Gerais‚ Belo Horizonte‚ Minas Gerais‚ Brazil; and 2Department of Environmental‚ Biological and Health Sciences. University Center of Belo Horizonte
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Purpose: To determine the effect of various factors on the rate of reaction between an enzyme andits substrate‚ and also to determine the optimal ranges under which the enzyme activity ismaximized. Also to determine whether saline and alcohol are inhibitors or activators Hypothesis: PH factor prediction: I predict that as the pH increases so the activity of the enzyme willincrease until it reaches optimum pH range (pH 7) because the enzyme is less denaturedwhen it reaches the preferred pH level
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Photosynthesis Lab Data Collection: The absorption of different wavelengths of light by Chlorophyll Wavelength (nm) Absorbance of light by chlorophyll (Arbitrary units) Diluted Calculation New Reading (Arbitrary units) Violet 430 2.35 50% 2.35 x 2 3.20 Blue 470 1.09 - - 1.09 Blue-Green 492 0.38 - - 0.38 Green 520 0.77 - - 0.77 Yellow-Green 550 0.85 - - 0.85 Yellow 580 1.43 - - 1.43 Orange 600 0.65 - - 0.65 Red 700 0.16 - - 0.16 Absorption and reflection of light: Different
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