BIOLOGY DCN PHOTOSYNTHESIS LAB # 6 Effect of varying coloured filters on the photosynthetic rate of spinach chloroplasts The data below is just representative of what trends and relationships you were supposed to see. Numbers can vary. Absorbance at 620 nm for each treatment DCPIP + chloroplasts t=0 min. 0.93 0.945 0.905 0.915 t=3 min. 0.95 0.731 0.83 0.816 change in A620 -0.02 0.214 0.075 0.099 t=0 min. t=3 min. change in A620 t=0 min. t=3 min. change
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The purpose of the experiment is to determine the effects of sugar on photosynthesis in Elodea. Sugar water with Elodea‚ water with Elodea‚ and water (control) are used to test for photosynthesis. Five drops of sugar water were added to sugar water with Elodea beaker. The three beakers were left under normal light for photosynthesis to occur. After 60 minutes‚ NaOH solution was added to each beaker to test the volume of CO2. The result shows that both Sugar water with Elodea and water with Elodea
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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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Lab Report: Understanding Photosynthesis Gen Biology Lab Abstract: This lab was called photosynthesis: understanding photosynthesis. It is a highly complex process that needs to be broken down in many steps to understand how it works. This lab covers the big components in photosynthesis including carbon dioxide intake‚ light consumption‚ and varying pigmentation. Introduction: Photosynthesis is a huge concept to learn and understand in the field of biology. Plants have their own special
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shows above‚ the more light there is shining on the plant‚ the more bubbles there are per minute. Although it dips from time to time‚ the experiment with two lights always have a higher average than the previous ones. This means that the light intensity actually has an impact on the plant’s photosynthesis levels. The reason that there are more bubbles in the experiments with more light is because of the oxygen release rate. With more light intensity‚ the rate of photosynthesis happens faster. Since
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Light Intensity Characteristics of Photocells The photoelectric effect is defined as the emission of electrons from a material by visible light. The cadmium sulfide photocell is used to act as a conductor once exposed to light‚ allowing light to travel through. However it also acts as an electric resister (an opposition to a current flowing in a circuit) once not exposed to light. The photocell serves today ’s cause in a sufficient manner. It is used for a variety of reasons but it is mainly
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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 our lab experiment
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‘‘Wavelength‚ Frequency‚ Energy and Flame Color Produced by Different Metals’’ Period 8 October 30th 2013 October 24th 2013 Sosa #2 ABSTRACT: The purpose of this project was to identify the different flame colors that the different metals release‚ compare the flame colors with wavelength‚ compare the wavelength of different flames to their frequencies and energies‚ explain how the flames colors were produced‚ compare and contrast the results obtained in the lab with regard
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Elodea & Photosynthesis Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product. Introduction This lab has been created in order to find what extent does distance from a light source (5cm‚ 10cm‚ and 15cm) affect the rate of photosynthesis (measured in bubbles / 3 min) in Elodea water plants. Hypothesis:
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Light Reactions Lab This lab explores the effect of light intensity and light wavelength on photosynthesis. The quantity of energy [ATP] produced will change depending upon on these parameters. Use "Johnson Explorations: Photosynthesis" located at http://www.mhhe.com/biosci/genbio/biolink/j_explorations/ch09expl.htm Examine the diagram before clicking "skip intro" so you have an idea what is going on. The animation show the movement of photons‚ electrons‚ water‚ protons‚ ATP etc. relating to
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