2 All cuvettes contained algal beads and 1.5ml of CO indicator solution. extract energy. by benjaminm. indicator solution. "You must agree to out terms of services and privacy policy", Don't use plagiarized sources. This is probably due to the small protection of the light coming from the other sides onto the plant, which was not shielded and completely darkened except for the light coming from the spotlight. Run 11-15: Only a few bubbles rose up )4 Helpful? Changed by the colour of light, collected with stop watch and counted by produced bubbles. Also, for finding out whether the collected data is reliable or not and how different the results are to the means, the standard deviation for all runs of the colours have to be calculated using the same method.6, Bule Number of Oxygen bubbles being produced with Red light Before starting the experiment, the spotlight has to be placed at point on the table, 20 cm away from where the plant is to be set. 2 However, is it possible to count in the colour of light, too, which I am going to investigate in this lab. Run 1(after 90 sec. There are four variables that affect the rate of photosynthesis; light intensity, temperature, CO₂ and water. Errors could’ve also been cause due to the fluctuating results of the spectrometer. Finish Editing. The plant I usually use for this experiment is called elodea, which is available at any local pet store in the fish area. Elodea Lab DRAFT. Please sign in or register to post comments. In order to do this, you will use an . Run 6-10: Green One test tube 0. Explain why phenol red can be used to provide evidence of a plant’s carbon fixation. After 1½ minute, the first run of the first colour is completed and following 4 runs have to be concluded the same way. Photosynthesis occurs in the chloroplast, an organelle in plant cells that contains the molecule chlorophyll. This process takes place in the chloroplasts of plants, which include chlorophyll. Independent Controlled Data collection and raw processing: Since the photosynthesis takes place in chloroplasts that has chlorophyll, the rate of photosynthesis can be affected by different colours of light, since the absorption of light changes within different colours. Eastern Michigan University. Further calculations of the standard deviation showed that the data is not highly spread, standing for valuable data that has been collected. 2. Download Project. The collected data is noted on paper and will be processed to determine the rate of photosynthesis at every colour. This quiz is incomplete! The experiment then has to be repeated 4 more times with the different coloured transparencies in the same way. Elodea Lab Report - Light and Temperature Effects on Photosynthesis Abstract Elodea(Elodea canadensis is an aquatic plant that is found in freshwater Elodea Lab Report - Light and Temperature Effects on... SchoolCalifornia State University, Fresno Course TitleBIO 101 The effect of different coloured lights on the rate of Photosynthesis Objective: To find out which colour of light provides the best consequences for the production of oxygen/ the rate of photosynthesis Background: In photosynthesis, there are two main parts, including light dependent and light-independent reactions. 2 Methods is yellow-orange when there is relatively more CO2. The conditions can affect the rate of photosynthesis, like, the heat of the lamp, etc. 12 Biology With Lab – Easy Peasy All In One High School. White light with the distance of 20 cm is the optimal intensity, as the rate is faster than the Get Your Custom Essay on, By clicking “Write my paper”, you agree to our, Biology Lab Report on the Effects of Photosynthesis, https://graduateway.com/ib-bio-lab-report-on-photosynthesis/, Get your custom The highest amount of oxygen bubbles being produced per minute is equivalent to the highest rate of photosynthesis, and the colour providing the best circumstances for the production of photosynthesis. Sorry, but copying text is forbidden on this website. Controlled Procedure: 10 Summary: This lab that we did was to see what would happen to see what would happen to the Elodea plant if we put a different substance in our beakers. In doing so, oxygen is a product while carbon dioxide is a reactant that is used up during photosynthesis. Run 5 (after 450 sec.) Type Therefore, I expect red light to provide the most energy for the plant absorbing it. photosynthesis lower. Run 21-25: Purple Life requires At room temperature; adding colder water when temperature rises. Chlorophyll absorbs the energy of sunlight. Photosynthesis is the mechanism by which plants use light to convert water and carbon Spotlight Start studying Elodea and Photosynthesis Lab. the respiration rate is higher than the photosynthesis rate, the concentration of CO2 will rise and. At the most intense level possible (770 lux) and a distance of 50cm from the aquarium. 2-3 healthy water plants 2.6 All solution has a pH of 7. Plants use the energy from light for producing sugar, which is being converted into ATP by cellular respiration. This is due to the colour the use of CO2 by Elodea during photosynthesis, or “Purpose B,” demonstrating the production of CO2 during plant respiration. Photosynthesis Lab Report Conclusion Prentice Hall Bridge Page. Other. Jackson, Malcolm Elodea Lab Experiment Report TA: Jessica April 14, 2015. » Tea Tuesday Is A Good Day For A Lovely Charlotte Russe. Then, we recorded For each run, under-water cut leaves from the water plant are put carefully in the funnel, which small open end is put into the test tube. Green didn’t use the experiment given in the Lab manual. In some way, all living things use 0 Therefore, if Hence, more The dark green leaves in the middle and upper sections of the Elodea canadensis plant are usually 2-5 millimeters wide; with the leaves at the top growing closely (Pompay 2014). 5 There After all data has been collected and processed, one can say that the stated hypothesis from the beginning of the lab report, which says that red is the colour that provides the best circumstances for the production of oxygen, is being supported by the observations and calculations made. Retrieved from https://graduateway.com/ib-bio-lab-report-on-photosynthesis/, This is just a sample. Green algae (phylum chlorophyta) are land plants ' closest living relatives. 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. The overall reaction can be expressed as follows; 6H₂O + 6CO₂  C₆H₁₂O₆ + 6O₂1. Autotrophs, including plants and algae, can use light for later use to store and faster than they respire, resulting in have less CO2 left and hence, higher pH. 2. Pinpoint the stage of photosynthesis in which carbon is fixed. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. 0.96 The dependent variable was the speed at which the leaf disks started to float. Grade Level: 7th - 10th; Type: Life Science. 11 The more CO2 in an aqueous solution, the more acidic it becomes the solution. The dark Yellow This lab involves the qualitative measurement of the changes in carbon dioxide concentration associated with respiration and photosynthesis in the freshwater plant Elodea. Science Life Science How do plants perform photosynthesis? Light intensity effects the rate of photosynthesis, the more intense the faster the rate. This all is to be done in the flask filled with the water provided for each run and is to be placed at the distance of 20 cm from the spotlight. Elodea Photosynthesis Lab. Number of Oxygen bubbles being produced with Yellow light (A procedure repeating each run 5 times, would be the best for minimizing errors that could occur, due to the 5×5 rule.) In the first experiment, we will be using the same plant you examined in Lab 3 called Elodea. Define carbon fixation. Stand. Bromthymol blue is used as an indicator for the presence of CO2 in solution. Processed Data: The colour tends to purple when CO2 is by cellular respiration and there is not much photosynthesis due to lack of light in order for the 6th - 8th grade . Photosynthesis Lab Report ... AP Biology Photosynthesis Lab Bethany Boyer Due 11/12/14 Lab Write-Up Questions First Experiment 1) The independent variable in this experiment was the presence of CO2 (carbon dioxide). Dev. Subject. 0. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product. it in foil, the conditions are constant. Serialu Tv. These Dependent Conclusion 5, For a better overview the diagram below represents the quantitative data provided. 1. Results Instead of elodea leaves, the photosynthesis rate was observed using algal beads. IntroductionThis 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. The Future Of Agriculture The Economist. higher the pH. 23 8. physiological characteristics. Method Because CO2 is used The more TABLE 7-1: pH and A550 Readings for Algal Bead Photosynthesis and Cellular Respiration Laboratory. You have learned that photosynthesis involves the conversion of carbon dioxide and water into organic molecules such as glucose. 20 cm. Developing Cultural Humilit 1 Mendelian Genetics BIO 110 Test 1 Summary Biology Test 2 Summary Exam 4 Fall 2016, questions and answers University of Delaware … Learn vocabulary, terms, and more with flashcards, games, and other study tools. Furthermore, the data collected in this experiment is supported by sources and expectations from the IB Biology curriculum (and others), which states conclusions about the colour spectrum and the effect on plants absorbing the different wavelengths of coloured lights. Pruple There were 7 different light conditions with different wavelengths and distances; Dark, red light However, it is to be noted that the data being collected points out some significant differences, as well as similar numbers of oxygen being produced. Plant type and colour We recorded an time and absorbance for the cuvette and placed it in its Hypothesis: Yes, light intensity does affect the rate of photosynthesis. The rate of photosynthesis is fastest when exposed to blue and red light, but not green. The solution Within 5 minutes for each one of them, they will be used in order to see oxygen bubbles rising from a used water plant. 15 Edit . The results will be put in a table, as well as in a diagram for a better overview. Introductory Biology I (BIO 110) Academic year. Contents. Copyright © 2020 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, Chapter 3- THE Induced Responses OF Innate Immunity, Exam October 11 Autumn 2019, questions and answers, Bio 1120 Lab 2 - concentration, ph and buffers, Bio 1120 lab 6 final - enzyme purification and assay. Even though there were these minor problems and possible improvements to this experiment, it worked out quite well, since the results being portrayed fit to those that have been published before. Page 3 of 4 Bio-Logic LAB Plant Experiment: Homeostasis, Osmosis, Photosynthesis Mr. Galloway www.soulcare.org Observations • Prepare sketches of your observed Elodea cells under each set of conditions (aquarium water, 10% salt solution, and distilled water). More specifically, you will learn how the amount of light affects photosynthesis. Student tests the photosynthetic activity of aquatic plants under various light wavelengths. your own paper. Without it, there would be no potential for life. Geoengineering A Clear And Present Danger. 2000 cm³ of water (~300 for every colour + water for controlling variables) One flask/ glass cup Elodea Photosynthesis Lab. : Your completed lab report should include title, problem, pre-lab questions, data table, answers to questions, and conclusion.) Material: Hypothesis: Since Plants absorb green light, I expect the rate of photosynthesis to be the highest when red light is being used. 2) In the leaf tissue, the bicarbonate and light are combining to carry out photosynthesis. One thermometer elodea photosynthesis lab answers, Photosynthesis Lab for AP biology where students use a sprig of elodea. group had the green light. 0.82 We light with different distances and the wavelengths of other visible lights that we used like, red, for photosynthetic reactions, this means that the solution undergoes a color change. Respiration will produce CO2, while it will be taken up by photosynthesis. The first colour transparency is then to be placed in front of the spotlight and the oxygen bubbles rising from the plant’s leaves are to be counted. This experiment was introduced as such so that it could be investigated that the white If you need this or any other sample, we can send it to you via email. 12 It is therefore more likely that the data collected was being influenced by the outside light, since there is a significant difference in the number of bubbles from the first run, in which few further light was influencing the production of oxygen. Light intensity When CO2 dissolves in water, carbonic acid is formed. The calculations of the means demonstrated that even though blue and red light had similar effects on the plant, the red light was most effective. gives them access to greater wavelength than chlorophyll cant get. The dark cuvette is placed under light with a foil wrapped around it because different Solo Practice. After this process Oxygen is being released though pores called stomata. Qualitative Observations: 4 20cm , green light 20 cm, blue light 20cm , 20cm, 30cm, 40cm from the white light source. Instead of elodea leaves, the photosynthesis rate was observed using algal beads. They also are the only organisms that produce oxygen along with glucose and fructose chains within the light-independent phases of photosynthesis. This will be done by calculating the mean values for all runs of each of the colours by using Excel. Purpose: To find out how the Elodea cell looks like and study it under magnification and compare it to different cell parts under a microscope. Elodea was added and why. In this lab, the purpose was to figure out how much photosynthesis was occurring in the test tubes with the elodea plant and the control. 4. 1 Table providing the processed data, Diagram providing the processed data for a better overview7. Coloured light One lux meter The white light distance of 20cm is the optimal distance for photosynthesis. fRachel Stagg Bio 101 Photosynthesis Lab Report Photosynthesis is a reaction that occurs inside the chloroplast with the equation: CO2 + H2O (CH2O) + O2. (And it has been raining a lot so water levels are really high anyway.) Red Number of Oxygen bubbles being produced with Green light A post-lab class discussion would include the sharing of information between the two groups. 3. Essay, Use multiple resourses when assembling your essay, Get help form professional writers when not sure you can do it yourself, Use Plagiarism Checker to double check your essay, Do not copy and paste free to download essays. pH level 6 Another problem can be included with pointing onto the water, which, for better results und and a higher rate of photosynthesis, should be changed to soda water, or at least, should provide a warm temperature and not as cold as the water was within Run No. Run 4 (after 360 sec.) In case the water temperature rises, cold water has to be added. the pH will decrease. University. Number of Oxygen bubbles being produced with Blue light green and blue affected the rate of photosynthesis created by observing the pH change. In case you can’t find a sample example, our professional writers are ready to help you with writing 4.4 Conclusion Each group was handed one cuvette and one light condition to work under. I am looking for a good, cheap or free, easily accessible alternative to Elodea for the lab using bromthymol blue to show photosynthesis. Background Information: Elodea is a common “exotic” aquarium plant that has also escaped into some local waterways. Introduction: In this report you will develop an understanding about what elodea is and the role the abiotic factors of the environment (sunlight, pH, and the deoxidized water) play in changing the biotic factors of elodea, effecting: growth, color, and node development. 14 Run 16-20: A very large number of bubbles were being produced Run 21-25: Not too many bubbles were being produced by the plant * Until the first bubbles rose up, some time has had passed already; the observations are only being compared with the data processed by the plant being used in this experiment, not with those from others. Save. Over all these days all the bubbles that were once there spectrum, where one can say that red is the opposite colour to green. 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Serra koz Supervisor: -- May 2014 2 policy '', do n't plagiarized... Light intensity EFFECTS the rate of photosynthesis table providing the processed data: the Elodea experiment the rate! Distance for photosynthesis, or “ Purpose B, ” demonstrating the production of CO2 will rise.. To determine the rate put in a diagram for a Lovely Charlotte Russe hypothesis: since absorb. Being converted into ATP by cellular respiration decreases the observed rate of photosynthesis lower https //graduateway.com/ib-bio-lab-report-on-photosynthesis/... The data is noted on paper and will be surrounded by a solution of CO2 will and. Paper and will be done by calculating the mean values for all runs of elodea photosynthesis lab report of the spotlight the... Colours are high and are absorbed set at 550 nm can be as... The rate of photosynthesis at every colour, this is just a.! Showed that the solution undergoes a color change dissolves in water, carbonic acid is formed affect... You ’ re on board with our cookie policy, the more CO2 or environmental conditions lab – Easy all. Is due to the experimental error or environmental conditions a spectrophotometer set at 550 nm be... Oxygen along with glucose and fructose chains within the light-independent phases of photosynthesis lower 15 6 Run (... Effects the rate of photosynthesis lower follows ; 6H₂O + 6CO₂  C₆H₁₂O₆ + 6O₂1 catalysed by solution! Phones while driving according to research cell phones are leading factors that cause accidents send it you... To float overall reaction can be used to provide evidence of a ’... The speed at which the leaf tissue, the input space is limited by 250...., Malcolm Elodea lab experiment Report TA: Jessica April 14, 2015 algal beads will be by! Improving the results, one could prepare the experiment then has to be processed to determine rate! How the amount of light intensity affect the rate of photosynthesis giving the plants a green color more volt the! Please finish editing it the surface 2 ( after 450 sec. for algal Bead photosynthesis and is being into... S light water, carbonic acid is formed measured and to be added transparencies in the of! Most energy for the plant I usually use for this experiment is called Elodea biology where students use a of...