Abstract on Determining the Photosynthetic Activity in Plants Using Different Wavelengths of Light using Chromatography and a Spectrophotometer In this experiment‚ the separation of particular pigments‚ contained within a fresh spinach leaf‚ were examined. Paper chromatography is the process of separating certain molecules‚ or pigment molecules‚ based upon their polarity. Four different pigments were examined from the spinach leaf: chlorophyll a‚ chlorophyll b‚ xanthophyll‚ and carotene. Based
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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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Introduction The purpose of this lab is to determine which pigments in a plant support or effect photosynthesis‚ based on starch production‚ which wavelengths of light are involved in photosynthesis‚ and identify plant pigments found in a plant leaf by means of paper chromatography. Life on Earth is dependent entirely on the energy from the Sun‚ not only to keep the planet at a suitable temperature but also to provide the energy required to sustain life. The energy of the Sun‚ in the form of
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Hypothesis: My hypothesis for this experiment‚ the study of the effects of different wavelengths on leaf pigments‚ if chlorophyll a absorbs blue-violet light‚ chlorophyll b absorbs blue light‚ carotene absorbs blue-green light‚ and xanthophyll absorbs blue light‚ then wavelengths of greatest absorption will be 400‚ 450‚ 500‚ and 450 respectively. Independent Variable: Wavelengths Dependent Variable: optimum wavelengths of light for absorption Standard Variable: method of measurement‚ what
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use a process called photosynthesis to covert energy from the sun into energy they can use for their activities. The plant’s chloroplasts‚ along with water‚ carbon dioxide‚ and light are the essential elements required for photosynthesis to take place. The “photo” part of photosynthesis is in reference to the fact that the process requires light. The simplest form of the photosynthesis equation is: H2O + CO2 ----light----> (CH2O)N + O2 As shown in the equation‚ photosynthesis produces carbohydrates
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BIOLOGY Coursework Photosynthesis Made By: Mike Alexander= Definition: Photosynthesis is a process by which plants make their own organic‚ complex food (glucose) from organic‚ simple‚ raw materials using sunlight energy (which is converted to chemical energy) and enzymes in the chloroplasts (mainly mesophyll cells called palisade cells). How It Works: Carbon Dioxide + Water  Glucose + Oxygen 6CO2
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Effect of light on Silver Halide Salts Aim: To investigate the effect of sunlight and UV light on silver salts and to identify an application of this reaction. Hypothesis: The compounds exposed to sunlight (which already contains UV light) will decompose. The compounds which are not exposed to light (put in a dark place) will not decompose. Theory: Equipment: * 4 x petri dishes * 1 x glass stirring rod * 0.1 mol/L silver nitrate in a dropper bottle * 0.1 mol/L Sodium chloride
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the U.S. is just changing its method for building up U.S. well-disposed governments by advancing low-intensity majority rules system. “Low-intensity conflict is a limited politico-military struggle to achieve political‚ social‚ economic‚ or psychological objectives. It is often protracted and ranges from diplomatic‚ economic‚ and psychosocial pressures through terrorism and insurgency. Low-intensity conflict is generally confined to a geographic area and is often characterized by constraints on the
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healthy‚ combined with High Intensity Interval Training‚ you are going to reach top physical condition much more efficient than doing another sport. Amy Schlinger introduces in her article‚ “HIIT Workout: What It Is And Why It Works”‚ a modern training technique called High Intensity Interval Training. The article says the main idea is to try as hard as possible in an intense quick exercise which is followed by shorter‚ recovery breaks. This kind of training keeps the heart rate up. The interval training
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Caffeine effect on Daphnia’s heart rate Prepared for: Androniki Kloni By: Maria Mitsi October 6‚ 2013 Abstract Caffeine is a bitter‚ white crystalline xanthine alkaloid and a stimulant drug. Caffeine is found in varying quantities in the seeds‚ leaves‚ and fruit of some plants‚ where it acts as a natural pesticide that paralyzes and kills certain insects feeding on the plants‚ as well as enhancing the reward memory of pollinators. An experiment was held‚ on an aquatic
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