using the method of paper chromatography. Thanks to this technique the pigments were painted on the strip of paper‚ and we were able to calculate the distance each of them went up: the Rf value. We saw that carotene went the farther up and that chlorophyll ’a’ stayed next to the bottom part of the paper. Because the pigments have specific characteristic rate of movement they were able to be separated. Another objective of this experiment was to measure the rate of photosynthesis by the use of a spectrophotometer
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Food Chemistry: Option F Food Groups: F.1 Food & Nutrients Food: any substance‚ whether processed‚ semi-processed or raw‚ which is intended for human consumption‚ and includes drinks‚ chewing gum and any substance which has been used in the manufacture‚ preparation or treatment of “food” but does not include cosmetics or tobacco or substances used only as drugs. Nutrients: any substance obtained from food and used by the body to provide energy‚ to regulate growth‚ and to maintain and repair
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a waste product but saves a little bit to use for respiration. The sunlight is absorbed by a green pigment called chlorophyll. Most of the glucose is turned into a substance called starch. Word equation for photosynthesis: Light energy Carbon dioxide + Water Glucose + Oxygen Chlorophyll Word equation for photosynthesis: Light energy 6CO + 6H O C H O + 6O 2 2 Chlorophyll 12 6 2 My aim: My aim is to determine the effect of light intensity on the rate of photosynthesis. To accomplish this
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Name : Aimi Nabilah Bt Hassin Class : BT81 KINGDOM | PHYLLUM | CHARACTERISTICS | EXAMPLE | PLANTEA | Vascular plants (Tracheophyta) | * larger plants which have specialised transport systems (veins) to carry nutrients and water * have true roots‚ stems‚ and leaves for transport of nutrients and water around the plant * Have structures called true roots‚ stems and leaves. * Vascular tissue is present.-These special transport cells run continuously through the roots‚ stems and the
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.niatrep lanruoj eht ot ylppa taht sremialcsid lagel lla dna ‚tnetnoc eht tceffa dluoc hcihw derevocsid eb yam srorre ssecorp noitcudorp eht gnirud taht eton esaelP .mrof lanif sti ni dehsilbup si ti erofeb foorp gnitluser eht fo weiver dna ‚gnittesepyt ‚gnitideypoc ogrednu lliw tpircsunam ehT .tpircsunam eht fo noisrev ylrae siht gnidivorp era ew sremotsuc ruo ot ecivres a sA .noitacilbup rof detpecca neeb sah taht tpircsunam detidenu na fo elif FDP a si sihT peer-00562971‚ version 1 - 4 Feb 2011
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element that burns in nitrogen. It is marvellous in fireworks. Phosphorous is an essential component of living systems and is found in nervous tissue‚ bones and cell protoplasm. Magnesium is an important element for plant and animal life. Chlorophylls are porphyrins based upon magnesium. The adult human daily requirement of magnesium is about 0.3 g
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to chemical energy and storing it in the bonds of sugar. This process occurs in plants and some algae. Plants need only light energy‚ CO2‚ and H2O to make sugar. The process of photosynthesis takes place in the chloroplasts‚ specifically using chlorophyll‚ the green pigment involved in photosynthesis. Photosynthesis takes place primarily in plant leaves‚ and little to none occurs in stems.. The upper and lower epidermal cells do not have chloroplasts‚ thus photosynthesis does not occur there. They
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cycle processes are: * Photosynthesis Plants undergo photosynthesis that helps them produce energy and food for themselves. During photosynthesis‚ plants take in carbon dioxide (CO2) and absorb water (H2O) with the help of their roots. The chlorophyll present in the leaves and the energy from the sun‚ helps convert CO2 and H2O into O2‚ sugar and water vapor. Oxygen (O2) is released by the plants as bi-product into the atmosphere. * Respiration Just as plants carry out photosynthesis‚ animals
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=========== ORGANIC CHEMISTRY ============ Organic Chemistry Laboratory - CH 201 (2010-2011) Experiment 4B Column and Thin-Layer Chromatography of Capsicum Frutescens L. Pigments John Cyril Abanto*‚ Vernalyn Abarintos and Clarice Gail Abella Department of Chemistry‚ College of Science University of Santo Tomas‚ Espana Street‚ Manila 1050 Date Submitted: September‚ 2010 ____________________________________________________________
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The Use of Sweeteners and the Rise in Obesity I have selected to discuss the relationship of the sweetener sugar (sucrose) between its consumption and the rise in obesity. There is a problem with the increase in sugar consumption. Sugar both drives fat storage and makes the brain think it is hungry‚ setting up a “vicious cycle‚” according Robert Lustig‚ MD‚ a UCSF pediatric neuroendocrinologist. Obesity is one of the top underlying preventable causes of death in the U.S. The rise of obesity
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