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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The purpose of this lab was to use a spectrophotometer to find the concentrations of glucose in varying samples of Gatorade. The varying executions included changing the temperature of reaction (room temperature instead of 40 degrees centigrade)‚ changing the time for reaction (20 minutes in the water instead of 45 minutes)‚ and changing the amount of enzyme added (0.1mL of enzyme. The results in from this lab gave data points with respect to ferricyanide. Fortunately‚ ferricyancide and glucose have
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Cellular Respiration of Yeast! Purpose: ! The purpose of this lab is to determine if the quantity glucose solution will increase or decrease the rate at which cellular respiration occurs at within the tested 20% yeast suspension.! Question:! What are the effects of increasing or decreasing the quantity of 0.06mol/L glucose solution on the cellular respiration within the tested yeast molecules?! Hypothesis: ! When the quantity of glucose solution is increased‚ the rate at which cellular respiration occurs
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such as fructose. The enzyme helps a chemical reaction take place quickly so that the reaction happens properly. In order for that to happen the enzymes process by the lock and key model‚ the lock is the substrate and the enzyme is the key. The active sites are specific to a certain substrate of a molecule‚ so the enzymes only have one job to do. The shape of an enzyme is not changed or consumed during these reactions. However‚ without enzymes the reactions would take too long and would not breakdown
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amounts of solution used. This would make both my results and conclusion invalid and unreliable. I also made sure that the temperature of the water bath was at the correct temperature and I kept on checking the temperature of both my amylase‚ and starch using a thermometer. I made sure both solutions were at the same temperature at all times throughout my experiments‚ so that temperature would not have an effect on my results. This would help me obtain more reliable and accurate results. Also‚ I made sure
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and the reproductive cycle with flowering and pollination is completed under water. Seagrasses have a number of adaptations to the submerged life form (Borum et al‚ 2004). Thalassia hemprichii is common on mud-coral-sand or coarse coral-sand substrates‚ in sheltered habitats in the Philippines. The plant has been observed growing from the base and through fingers of corals at 6 m deep. T. hemprichii may be found mixed with Syringodium isoetifolium‚ Cymodocea serrulata‚ C. rotundata‚ Enhalus acoroides
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device that is too pricy for killing insects and mosquitoes? II. Title Mosquito Trapper Using Sugar And Yeast III. Introduction Our group observed that many people especially children are prone in getting sickness from mosquitoes and may suffer sickness like Dengue and Malaria that may lead to death. Our group also observed that we can create a mosquito trapper and also a mosquito killer using recycled and improvised materials. In this‚ we can save more money and it is safer to use than
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Abdulaziz Design Lab Report Research Question: How is the rate of yeast fermentation of 7.5g of yeast affected by using different companies of yeast (Bakon Yeast Inc.‚ Lake States Yeast LLC‚ Lesaffre Yeast Corp‚ Red Star Yeast Company‚ and Minn-Dak Yeast CO Inc.)? Background Information: Yeast is a fungal microorganism that is used to manufacture mainly bread and beer. It reproduces rapidly. Fermentation is the process by which yeast takes in sugar and releases alcohol and carbon dioxide. Fermentation
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Technical Specification Sheet For UV-Spectrophotometer | | Wavelength range | 190 to 1‚100 nm | Spectral bandwidth | 1 nm (190 to 1‚100 nm)/ variable Low stray light < 0.12%T (220 nm‚ NaI 340nm‚ NaNO2>2.0 Abs) | Wavelength accuracy | ± 0.1 nm at D2 peak 656.1 nm‚ | | ± 0.3 nm for entire range | Reproducibility | ±0.1 nm | Resolution | 1 nm more than 6 wave lengths | Photometric system | Double beam optics | Photometric range | Absorbance: -4 to 4 Abs | | Transmittance:
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ID:0720052 Effect of an Increasing Substrate Concentration on Enzyme Activity Rate Abstract The reaction rate of an enzyme can be affected by many factors‚ and the purpose of this experiment was to find out how an increasing substrate concentration influences the rate of an enzyme activity; we obtained data from recording the absorbance of the samples which contain the same amount of potato juice (enzyme oxidase) and different amount of catechol (substrate) while holding pH and temperature constant
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