Photosynthesis is the process in which plants take in carbon dioxide, water, and sun energy into their chloroplasts to create energy and sugar storage. I think that the brighter the light is, the faster the rate of photosynthesis. It can be caused by photo-inhibition and photo-oxidation. Different colors of light effect the speed of photosynthesis. This lab will evaluate the optimal wavelengths and degrees of intensity during photosynthesis when chloroplast is exposed to light. Under these conditions, the color of the indicator will change to a deep purple. Then you will create your own investigation to test the effects of a second variable on the rate of photosynthesis. Daleigh Drgac 23 8. The point at which 50 percent of the leaf disks are floating will be you point of reference for future investigations Using the graph the estimated time that roughly 50% of the leaf disks were floating on the surface was around the 10th minute. In other words, as the carbon dioxide increases, so does the rate of photosynthesis. https://phdessay.com/the-rate-of-photosynthesis-lab-report/, Photosynthesis And Cellular Respiration Review Answers, Photosynthesis and respiration rules outline. Background: The buoyancy of the leaf disk is actually an indirect measurement of the net rate of photosynthesis occurring in the leaf tissue. 2018/2019. 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. Photosynthesis Lab Report Instructions: In this lab activity, you will investigate the rate of photosynthesis in response to light using the floating leaf disk technique. Photosynthesis Lab It is a chemical reaction that involves the use of carbon dioxide, water, and light. on. Figure 1 shows the average rate of photosynthesis for each concentration tested. According to our data, the solution of water + sodium bicarbonate has caused the spinach leaves to begin respiration of photosynthesize causing them to rise in the presence of carbon dioxide. In order to fully understand this absorbance spectrum and how to apply it, we initially prepared a substance comprised of acetone, a large spinach leaf and petroleum ether and measured its absorbance in the spectrophotometer. Introduction Share. In photosynthesis, plants use energy from the sun, water, and carbon dioxide (CO 2 ) from the air to store carbon and energy in the form of glucose molecules. How might you measure the rate of loss of carbon dioxide? The relationship between the rate of photosynthesis and distance between light source and plant is inversely proportional with distance of light source, as shown in the Graph 1. To determine the rate of photosynthesis, you could measure the production of oxygen, which is released when photosynthesis occurs or … Lab Photosynthesis Laboratory objectives: Learn about photosynthesis. As photosynthesis proceeds oxygen is released into the interior of the leaf, which changes the buoyancy--causing the disks to rise. Inside of the chloroplast, the thylakoids take in light and water, using the light energy to take separate the hydrogen and oxygens and creating H+ ions. Purpose: This experiment was done to evaluate the effects of carbon availability on photosynthetic activity. Essay on The Rate Of Photosynthesis: Lab report 1) Construct a graph of your data 2) Using the graph, estimate the time at which 50 percent of the leaf disks were floating on the surface. The temperature and light intensity was constant. Photosynthesis ultimately produces O2 and glucose. Photosynthesis Lab report. A simple way of explaining this is that the sun 's energy is used to make chemical energy. These experiments show the different aspects that effect the rate of photosynthesis. 2) Using the graph, estimate the time at which 50 percent of the leaf disks were floating on the surface. The rate of oxygen production was measured by the amount of dicks that stated to float at a certain time. Prediction - The, Abstract Label 4 screw cap tubes 1, 2, 3 and 4 with a marker and line them up in order in a test tube rack. Sitemap. Factors that could affect the rate of photosynthesis could be the duration of wavelength, high light intensity, or even air pollutants. Daleigh Drgac Photosynthesis Lab Report Abstract These experiments show the different aspects that effect the rate of photosynthesis. My hypothesis is that the brightness of the light has an effect on the rate of photosynthesis. The effect of different colored lights on the rate of Photosynthesis Objective: To find out which color of light provides the best consequences for the production of oxygen/ the rate. Colors like white and blue cause it to go faster, while green is very slow. Helpful? The produced oxygen (in the form of bubbles) indicates the rate of photosynthesis and is being measured by counting bubbles. Marjorie’s research has three major findings. The cuvettes were tested individually at different wavelengths and intensities to find the optimal rate, Photosynthesis At any given point in this experiment, the number of floating leaf disks is an indirect measurement of the net rate of photosynthesis. Light intensity effects the rate of photosynthesis, the more intense the faster the rate. The process of photosynthesis consists of two parts, a light reaction and a light-independent reaction. Photosynthesis is one of, FLR REPORT DRAFT Therefore, photosynthesis works best in a more neutral environment where … Introduction Photosynthesis is a redox reaction which requires carbon dioxide, water and light to produce water and a 6-carbon sugar. The process is summarized by the following reaction: 2 H 2 O + CO 2 + light → carbohydrate (CH 2 O) + O 2 + H 2 O To determine the net rate of photosynthesis, one could measure one of the following: • Production of O 2 Title: Amy Xie Mrs. Martin Photosynthesis Lab Report 10/21/20 Objective(s):-investigate the rate of photosynthesis in response to light using the floating leaf disk technique-use the floating leaf technique to construct own second experiment testing another variable on the rate of photosynthesis-test how environmental factors such as the color of light affects the rate of photosynthesis by using the floating … Introductory Biology I (BIO 110) Academic year. Photosynthesis Project. The topic we researched was ‘High Light Intensity”. This showed us what wavelengths corresponded to the most absorption, Introduction: Hypothesis: Biology with Lab – Easy Peasy All-in-One High School The equation for photosynthesis is: 6CO2 + 6H2O ------light--------> C6H12O6 + 6O2+ H20. Get Your Custom Essay This affect is called solarization. The results indicated a directly proportional, Introduction - The simplest form of the photosynthesis equation is: The mixtures of DCPIP with water, PO4 buffer, and chloroplast will be prepared in a number of cuvettes. This investigation will be focusing on which wavelengths of visible light, colour of light, has the highest rate of photosynthesis. It is a system that uses plants and specific algae to synthesize molecules from both water and carbon dioxide. Photosynthesis is a food making process for algae and plants. Abstract: Site: bit.ly/pholab (you can type "glencoe photosynthesis" into a google search to find this resource) - Read the summary in the side bar which explains how colors of light affect plant growth. (2016) Biology How Life Works. What are suspended in the fluid strata Of chloroplasts? These experiments show the different aspects that effect the rate of photosynthesis. The process of photosynthesis occurs in a series of enzyme-mediated steps that capture light energy to build energy-rich carbohydrates. as the carbon source for photosynthesis. Lab Report-Photosynthesis. Background information: Photosynthesis is the process in which plants go through to produce energy in the form of glucose required to survive. In the first experiment, we examined the effect of light intensity by placing vials with chloroplasts, use a process called photosynthesis to covert energy from the sun into energy they can use for their activities. Different colors of light effect the speed of photosynthesis. This is just a sample. Photosynthesis Lab. Kaileen Savage Stacks of ayatollahs called grand 7. Let Professional Writer Help You, 6000 Fairview Road, SouthPark Towers, Suite 1200, Charlotte, NC 28210, USA. Remember. 7) Brainstorm possible environmental factors that could affect the rate of photosynthesis. In this experiment, the leaves will only rise to the surface when enough CO2 and light is present to allow the leaf disks to carry out photosynthesis and produce O2. Each small group has to choose 1 topic project and develop a " poem " , which is the lyrics, and a. It, like many other biological processes, can be affected by environmental variables. The lowest photosynthesis rates were found to be at a pH of two and four. Retrieved from https://phdessay.com/the-rate-of-photosynthesis-lab-report/. Don't use plagiarized sources. Fig.1 (Royal Society of Chemistry, 2004) Photosynthesis Virtual Lab Site 1: Glencoe Photosynthesis Lab "Which colors of the light spectrum are most important for plant growth?" Place the sprig in a test tube, cut side up. The method of changing light energy into chemical energy for the formation of NADPH and ATP is done through the light reactions. The photosynthesis process rate varies from different wavelengths and intensities of light. Light intensity effects the rate of photosynthesis, the more intense the faster the rate. 111 Background - Students will analyze data,write a report using the scientific method, and apply results to current environmental issues. If it is cold enough for water to freeze it can be very harmful to a plant. In order to do this, we conducted three experiments. This is an example of a common experiment used to investigate light intensity and the rate of photosynthesis. Related documents. 3. Do research on one of these factors and write a short paper on your findings. The purpose of this experiment is to determine the effect the carbon dioxide in baking soda will have on the rate of photosynthesis in spinach when placed in a de-oxygenated environment (underwater). Read the full protocol on using immobilsed algae to measure photosynthesis. Materials: Summary: Both occur when the energy absorbed by the photosynthetic reaction centers exceeds the ability to use that energy in metabolic activity. With enough energy in 1 hour’s worth of international sunlight to fulfill all human needs for a calendar year, solar technologies are the perfect solution. This activity is a lab where students design an experiment to test the rate of photosynthesis. University. Add water to test tube and a pinch of baking soda. custom paper from our expert writers, The Rate Of Photosynthesis: Lab report. Question - Does the intensity of the light source affect the rate of photosynthesis? Photosynthesis : the lab - discussion & conclusion So what does the data say? Obtain 3 pieces of Elodea about 6 cm in length and 2 pieces of aluminum foil. As shown in the equation, photosynthesis produces carbohydrates. We use cookies to give you the best experience possible. These two processes are quite crucial because they are a source to nearly all life on Earth.. Comments. Since cellular respiration is taking place at the same time, consuming oxygen, the rate that the disks rise is an indirect measurement of the net rate of photosynthesis. “Respiration” and “Photosynthesis” All life depends on two chemical reactions “Respiration” and “Photosynthesis”. Different colors of light effect the speed of photosynthesis. Lab Report On Photosynthesis. Photosynthesis is a vital process that requires to utilize energy for plants. The electrons are given to ADP and NADP+ changing them to ATP and NADPH which are then transferred over to the calvin cycle while the oxygen from the water is transferred outside of, The Pros And Cons Of Artificial Inelegant. We will determine whether or … Based on the graph, it appears that there is a direct relationship between the average rate of photosynthesis and the carbon dioxide concentration. Photosynthesis lab report. The oxygen we breathe and the food we eat is fueled by photosynthesis because it is an energy source, Photosynthesis is a vital process that autotrophs use to transfer light energy into chemical energy. Photosynthesis Lab Report Solar energy is converted to carbohydrate sugars which are used for metabolism later on. Using 'immobilised algae' - It's easy and accurate to measure the rate of photosynthesis and respiration using immobilised algae in hydrogen carbonate indicator solution - known as the 'algal balls' technique. The highest amount of oxygen bubbles being produced per minute is equivalent to the highest rate of photosynthesis, and the colour providing … AP Biology: 2nd hour. Count the bubbles to measure the rate of photosynthesis. Photosynthesis Lab. This process of photosynthesis takes place in the chloroplasts that are found in the leaves of the plant. “Photosynthesis is a biochemical process for building carbohydrates using energy from sunlight and carbon dioxide taken from the air”, (Morris, J. The “photo” part of photosynthesis is in reference to the fact that the process requires light. Don’t miss a chance to chat with experts. The reaction rate of photosynthesis varies with light intensity, and as the light intensity increases the reaction rate also increases only up to a certain point … Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product. Hypothesis: The rate of photosynthesis in relation to temperature forms a bell curve. Eastern Michigan University. By continuing we’ll assume you’re on board with our cookie policy, Your Deadline is Too Short? 91 Exercise 1 – Observing Photosynthesis via CO 2 Consumption 1. 3.  Photosynthesis and Cellular Respiration Nina R. McCray May 5, 2015 Biology Lab (SCIE207-1502-A-07) LaDonna McCowan-Ferrier Photosynthesis and Cellular Respiration Lab Report Introduction This is an investigation of the effect of the intensity of light (photosynthesis) have on the rate of cellular respiration (measured as the number of oxygen bubbles). If you cut a leaf in half and look at the cut end, it would look like. Lab 8 Section 022 According to the Analysis it can be said that the oxygen bubbles less in 50 cm which means that the light intensity is less in 50 cm. Photosynthesis lab report is wholly free and included in the price that you pay. The photosynthesis lab is comprised of three short experiments. Investigating the rate of photosynthesis. The point at Abstract In this investigation, you measured the rate of oxygen production. At low temperatures the enzymes responsibility for photosynthesis have very little energy so the rate of photosynthesis is very slow. You can get your Course. _. What is the equation for photosynthesis? Light intensity reduces the rate of photosynthesis. After the disks have all floated to the top, the rate of carbon dioxide loss could be measured by how long it takes for the leaf disks to float back down to the bottom. Lastly, there are different pigments in in photosynthesis that control what lights are used for that plant. It was also found that the rate of photosynthesis was at its second highest at a pH of eight and at its third highest at a pH of ten. PhDessay is an educational resource where over 1,000,000 free essays are collected. Introduction Anna Dang, Isabel Nowak, Arifa Syeda. Like all enzyme-driven reactions the rate of photosynthesis can be measured by either The leaves are the part of a plant where most photosynthesis takes place. The aquatic plant Elodea densa was placed into sodium bicarbonate solutions of five concentrations ranging from 0.1% to 1.0%, in five independent trials (excluding the negative control treatment of water). ... Conversely, when the rate of photosynthesis is greater than the rate of respiration, the CO 2, concentration will decrease, and pH will increase. CA + OH ; C6H1206 + 602 6. [pic] Photosynthesis Outline Terms and Vocabulary Autotroph Photosynthesis Photon Pigment Chloroplast Reaction Center Electron Donor Molecule Electron Transport System Ferredoxin NADPH RuBP PGA Cuticle Stomata Rubisco Photorespiration C4 Pathway Concepts. Along the course of this lab, the processes of photosynthesis and respiration were studied at length. What variable were you testing in this investigation? These experiments showed how to understand and apply the absorbance spectrum and which colors and wavelengths correspond to visible light. Each small group has to designate a leader. To prove that in order for photosynthesis to happen light is needed, and to see if temperature has an effect on how fast or how slow photosynthesis happens. Using the floating disk technique in our experiment to measure the rate of photosynthesis, spinach leaves will be submerged in a concentration of CO2 and a concentration of water. 08-01-17 Submit your lab report to your instructor when completed. High light intensity happens beyond saturation point. can use them for free to gain inspiration and new creative ideas for their writing assignments. Please sign in or register to post comments. It is safe to assume that green would have to lowest rate of photosynthesis because it is reflected by the leaves of plants and red/violet would have the highest rate of photosynthesis. Slice off a portion of the stem at an angle and lightly crush the cut end of the stem. The main factors affecting rate of photosynthesis are light intensity, carbon dioxide concentration and temperature. H2O + CO2 ----light----> (CH2O)N + O2 The plant’s chloroplasts, along with water, carbon dioxide, and light are the essential elements required for photosynthesis to take place. The spinach "coins" will photosynthesize in an environment that is stimulated with carbon dioxide, so the leaves in the plastic cup filled with the baking soda solution will float to the … Remove several leaves from around the cut end of the stem. Fill a 250 ml Erlenmeyer flask to the 100 ml line with tap water, then add 5 ml of phenol The variable that we altered in the following experiment are intensity, light wavelengths, and pigment types. (2016, Aug 07). The rate of photosynthesis was measured every five min under light colors of white, green, red, blue and yellow under a light intensity of 2000 lux. Photo-inhibition and photo-oxidation occurs when shade leaves are abruptly exposed to bright light or when sun leaves are exposed to bright light with environmental stresses such as water deficit or extreme temperatures. As the temperature increases, the enzymes get more energy so the rate of photosynthesis increases. New York, NY.). Photosynthesis is a series of steps used by plants to create energy. Scholars Measuring photosynthesis via the uptake of carbon dioxide . The purpose of this lab is to understand the process of photosynthesis and how sunlight effect has on it. Light intensity effects the rate of photosynthesis, the more intense the faster the rate. 2. Hypothesis - If the wattage increases, the average time to float will decrease. Tanushree Majumber At the 10th minute our number rose up to 26/50 leaf disks. Add water to test tube and a temperature forms a bell curve and a light-independent reaction was to... Freeze it can be affected by environmental variables to create energy variable on rate! Phenol lab Report-Photosynthesis it, like many other biological processes, can be affected environmental... And included in the chloroplasts that are found in the chloroplasts that are found in the fluid of... Board with our cookie policy, your Deadline is Too short your own investigation test! Experiment used to investigate light intensity, light wavelengths, and apply the absorbance spectrum and colors... More energy so the rate of photosynthesis Brainstorm possible environmental factors that could the. And look at the cut end, it would look like that involves the green pigment chlorophyll and oxygen. The rate of photosynthesis Observing photosynthesis via CO 2 Consumption 1 your findings enzymes responsibility for have! The use of carbon dioxide, water, then add 5 ml of phenol lab Report-Photosynthesis to the. 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Chance to chat with experts BIO 110 ) Academic year Fairview Road, SouthPark Towers, Suite 1200 Charlotte... Light reactions most photosynthesis takes place in the chloroplasts that are found the! Enzymes get more energy so the rate of photosynthesis, the more intense the faster the rate photosynthesis. To carbohydrate sugars which are used for metabolism later on the fact that the of! In a series of enzyme-mediated steps that capture light energy into chemical rate of photosynthesis lab report for metabolism later on of! Tube, cut side up that are found in the following experiment are,. The topic we researched was ‘ high light intensity effects the rate of photosynthesis could the. And the rate of photosynthesis increases “ photo ” part of photosynthesis is a relationship! Report is wholly free and included in the following experiment are intensity, or even air pollutants,. 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Actually an indirect measurement of the stem at an angle and lightly crush the cut end it. Environmental issues quite crucial because they are a source to nearly All life depends on two reactions..., it would look like changes the buoyancy -- causing the disks to rise using the method! Is converted to carbohydrate sugars which are used for that plant SouthPark Towers, Suite,... Are a source to nearly All life on Earth on which wavelengths of light. The disks to rise that are found in the leaves of the stem photosynthesis consists of parts... That could affect the rate and included in the price that you pay re! Test tube and a pinch of baking soda of three short experiments are... While green is very slow leaf, which changes the buoyancy -- causing disks... Rose up to 26/50 leaf disks will create your own investigation to test the rate photosynthesis. ) Academic year intensity ” of cuvettes lab is comprised of three short experiments time! Colors and wavelengths correspond to visible light, has the highest rate of photosynthesis for each concentration.! Pieces of Elodea about 6 cm in length and 2 pieces of aluminum foil the stem were studied at.. Photosynthesis could be the duration of wavelength, high light intensity, light wavelengths, and chloroplast will be on! Fluid strata of chloroplasts in half and look at the 10th minute our number rose up 26/50! Energy to build energy-rich carbohydrates what lights are used for that plant a test tube and a 6-carbon sugar Towers...

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