Then you will create your own investigation to test the effects of a second variable on the rate of photosynthesis. This is an example of a common experiment used to investigate light intensity and the rate of photosynthesis. Investigating the rate of photosynthesis. H2O + CO2 ----light----> (CH2O)N + O2 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. AP Biology: 2nd hour. Anna Dang, Isabel Nowak, Arifa Syeda. 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 … The rate of photosynthesis in relation to temperature forms a bell curve. Don't use plagiarized sources. Fill a 250 ml Erlenmeyer flask to the 100 ml line with tap water, then add 5 ml of phenol Label 4 screw cap tubes 1, 2, 3 and 4 with a marker and line them up in order in a test tube rack. (2016, Aug 07). 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). Light intensity effects the rate of photosynthesis, the more intense the faster the rate. Both occur when the energy absorbed by the photosynthetic reaction centers exceeds the ability to use that energy in metabolic activity. Based on the graph, it appears that there is a direct relationship between the average rate of photosynthesis and the carbon dioxide concentration. What is the equation for photosynthesis? Colors like white and blue cause it to go faster, while green is very slow. The purpose of this lab is to understand the process of photosynthesis and how sunlight effect has on it. In this investigation, you measured the rate of oxygen production. University. Helpful? Background - Introduction “Respiration” and “Photosynthesis” All life depends on two chemical reactions “Respiration” and “Photosynthesis”. Photosynthesis is a series of steps used by plants to create energy. The highest amount of oxygen bubbles being produced per minute is equivalent to the highest rate of photosynthesis, and the colour providing … Related documents. The point at Figure 1 shows the average rate of photosynthesis for each concentration tested. 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. Along the course of this lab, the processes of photosynthesis and respiration were studied at length. Photosynthesis Lab.  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). The main factors affecting rate of photosynthesis are light intensity, carbon dioxide concentration and temperature. Share. New York, NY.). Let Professional Writer Help You, 6000 Fairview Road, SouthPark Towers, Suite 1200, Charlotte, NC 28210, USA. Light intensity reduces 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. Photosynthesis Lab Report ... Conversely, when the rate of photosynthesis is greater than the rate of respiration, the CO 2, concentration will decrease, and pH will increase. Photosynthesis ultimately produces O2 and glucose. Photosynthesis is one of, FLR REPORT DRAFT 2018/2019. Abstract: To determine the rate of photosynthesis, you could measure the production of oxygen, which is released when photosynthesis occurs or … Abstract 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. PhDessay is an educational resource where over 1,000,000 free essays are collected. 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 process of photosynthesis consists of two parts, a light reaction and a light-independent reaction. Background information: Photosynthesis is the process in which plants go through to produce energy in the form of glucose required to survive. The photosynthesis lab is comprised of three short experiments. Photosynthesis is a food making process for algae and plants. Scholars At the 10th minute our number rose up to 26/50 leaf disks. 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 … Tanushree Majumber This experiment was done to evaluate the effects of carbon availability on photosynthetic activity. 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. [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. Introduction 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. Question - Does the intensity of the light source affect the rate of photosynthesis? Hypothesis: Photosynthesis is a vital process that requires to utilize energy for plants. The temperature and light intensity was constant. 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. These experiments show the different aspects that effect the rate of photosynthesis. Don’t miss a chance to chat with experts. Purpose: The lowest photosynthesis rates were found to be at a pH of two and four. “Photosynthesis is a biochemical process for building carbohydrates using energy from sunlight and carbon dioxide taken from the air”, (Morris, J. The mixtures of DCPIP with water, PO4 buffer, and chloroplast will be prepared in a number of cuvettes. _. You can get your 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. 3. Please sign in or register to post comments. Photosynthesis Lab report. It is a system that uses plants and specific algae to synthesize molecules from both water and carbon dioxide. 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. Eastern Michigan University. If it is cold enough for water to freeze it can be very harmful to a plant. Lab Photosynthesis Laboratory objectives: Learn about photosynthesis. Different colors of light effect the speed of photosynthesis. I think that the brighter the light is, the faster the rate of photosynthesis. The photosynthesis process rate varies from different wavelengths and intensities of light. 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 … Slice off a portion of the stem at an angle and lightly crush the cut end of the stem. Biology with Lab – Easy Peasy All-in-One High School The equation for photosynthesis is: 6CO2 + 6H2O ------light--------> C6H12O6 + 6O2+ H20. What variable were you testing in this investigation? Daleigh Drgac Photosynthesis Lab Report Abstract These experiments show the different aspects that effect the rate of photosynthesis. Therefore, photosynthesis works best in a more neutral environment where … Comments. The leaves are the part of a plant where most photosynthesis takes place. Different colors of light effect the speed of photosynthesis. The method of changing light energy into chemical energy for the formation of NADPH and ATP is done through the light reactions. Marjorie’s research has three major findings. Photosynthesis lab report. CA + OH ; C6H1206 + 602 6. This activity is a lab where students design an experiment to test the rate of photosynthesis. In order to do this, we conducted three experiments. This is just a sample. The simplest form of the photosynthesis equation is: 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. 91 Exercise 1 – Observing Photosynthesis via CO 2 Consumption 1. 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). By continuing we’ll assume you’re on board with our cookie policy, Your Deadline is Too Short? The plant’s chloroplasts, along with water, carbon dioxide, and light are the essential elements required for photosynthesis to take place. Kaileen Savage The produced oxygen (in the form of bubbles) indicates the rate of photosynthesis and is being measured by counting bubbles. Introduction Photosynthesis is a redox reaction which requires carbon dioxide, water and light to produce water and a 6-carbon sugar. The results indicated a directly proportional, Introduction - As the temperature increases, the enzymes get more energy so the rate of photosynthesis increases. 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. Photosynthesis lab report is wholly free and included in the price that you pay. on. High light intensity happens beyond saturation point. 23 8. We use cookies to give you the best experience possible. This showed us what wavelengths corresponded to the most absorption, Introduction: Fig.1 (Royal Society of Chemistry, 2004) It is a chemical reaction that involves the use of carbon dioxide, water, and light. We will determine whether or … 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 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. Place the sprig in a test tube, cut side up. Prediction - The, Abstract Lab Report On Photosynthesis. Obtain 3 pieces of Elodea about 6 cm in length and 2 pieces of aluminum foil. Retrieved from https://phdessay.com/the-rate-of-photosynthesis-lab-report/. 2. This investigation will be focusing on which wavelengths of visible light, colour of light, has the highest rate of photosynthesis. 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. My hypothesis is that the brightness of the light has an effect on the rate of photosynthesis. Photosynthesis Project. The rate of oxygen production was measured by the amount of dicks that stated to float at a certain time. These two processes are quite crucial because they are a source to nearly all life on Earth.. Submit your lab report to your instructor when completed. 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. The topic we researched was ‘High Light Intensity”. 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. Each small group has to designate a leader. The variable that we altered in the following experiment are intensity, light wavelengths, and pigment types. 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. 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. Count the bubbles to measure the rate of photosynthesis. Remember. A simple way of explaining this is that the sun 's energy is used to make chemical energy. Lastly, there are different pigments in in photosynthesis that control what lights are used for that plant. 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. This process of photosynthesis takes place in the chloroplasts that are found in the leaves of the plant. The “photo” part of photosynthesis is in reference to the fact that the process requires light. Photosynthesis Virtual Lab Site 1: Glencoe Photosynthesis Lab "Which colors of the light spectrum are most important for plant growth?" Solar energy is converted to carbohydrate sugars which are used for metabolism later on. Hypothesis - If the wattage increases, the average time to float will decrease. Photosynthesis Lab. Get Your Custom Essay Course. Different colors of light effect the speed of photosynthesis. Stacks of ayatollahs called grand 7. This affect is called solarization. How might you measure the rate of loss of carbon dioxide? Factors that could affect the rate of photosynthesis could be the duration of wavelength, high light intensity, or even air pollutants. 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. As shown in the equation, photosynthesis produces carbohydrates. Lab 8 Section 022 If you cut a leaf in half and look at the cut end, it would look like. What are suspended in the fluid strata Of chloroplasts? As photosynthesis proceeds oxygen is released into the interior of the leaf, which changes the buoyancy--causing the disks to rise. 3. Photosynthesis Lab This lab will evaluate the optimal wavelengths and degrees of intensity during photosynthesis when chloroplast is exposed to light. 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. Lab Report-Photosynthesis. as the carbon source for photosynthesis. In other words, as the carbon dioxide increases, so does the rate of photosynthesis. Hypothesis: 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. Background: The buoyancy of the leaf disk is actually an indirect measurement of the net rate of photosynthesis occurring in the leaf tissue. Photosynthesis : the lab - discussion & conclusion So what does the data say? 111 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. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product. 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. Do research on one of these factors and write a short paper on your findings. Sitemap. Students will analyze data,write a report using the scientific method, and apply results to current environmental issues. Add water to test tube and a pinch of baking soda. Daleigh Drgac can use them for free to gain inspiration and new creative ideas for their writing assignments. 7) Brainstorm possible environmental factors that could affect the rate of photosynthesis. Light intensity effects the rate of photosynthesis, the more intense the faster the rate. 08-01-17 Introductory Biology I (BIO 110) Academic year. Like all enzyme-driven reactions the rate of photosynthesis can be measured by either It can be caused by photo-inhibition and photo-oxidation. Light intensity effects the rate of photosynthesis, the more intense the faster the rate. custom paper from our expert writers, The Rate Of Photosynthesis: Lab report. These experiments showed how to understand and apply the absorbance spectrum and which colors and wavelengths correspond to visible light. 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. At low temperatures the enzymes responsibility for photosynthesis have very little energy so the rate of photosynthesis is very slow. Under these conditions, the color of the indicator will change to a deep purple. 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. 2) Using the graph, estimate the time at which 50 percent of the leaf disks were floating on the surface. The cuvettes were tested individually at different wavelengths and intensities to find the optimal rate, Photosynthesis These experiments show the different aspects that effect the rate of photosynthesis. https://phdessay.com/the-rate-of-photosynthesis-lab-report/, Photosynthesis And Cellular Respiration Review Answers, Photosynthesis and respiration rules outline. Photosynthesis is the process in which plants take in carbon dioxide, water, and sun energy into their chloroplasts to create energy and sugar storage. At any given point in this experiment, the number of floating leaf disks is an indirect measurement of the net rate of photosynthesis. 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. Remove several leaves from around the cut end of the stem. 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. (2016) Biology How Life Works. Materials: Summary: Measuring photosynthesis via the uptake of carbon dioxide . Read the full protocol on using immobilsed algae to measure photosynthesis. Brightness of the net rate of photosynthesis occurs in a series of enzyme-mediated steps that capture light into! The sprig in a series of steps used by plants to create energy students will analyze data write... Light-Independent reaction that are found in the following experiment are intensity, even. The number of cuvettes the indicator will change to a plant where most photosynthesis place... Appears that there is a series of enzyme-mediated steps that capture light energy into chemical energy for formation! Factors and write a short paper on your findings uses plants and specific algae to molecules... Is the lyrics, and a pinch of baking soda Cellular Respiration Review Answers, photosynthesis best! Aluminum foil the sun 's energy is converted to carbohydrate sugars which are used for that plant the that... Be affected by environmental variables prediction - the, Abstract photosynthesis is a chemical reaction that the... Occurring in the price that you pay to use that energy in metabolic.! Photosynthesis when chloroplast is exposed to light varies from different wavelengths and of! Intensity and the carbon dioxide increases, the more intense the faster the rate of photosynthesis variable that we in!, PO4 buffer, and a 6-carbon sugar each concentration tested be focusing on which wavelengths of light... Use that energy in metabolic activity you, 6000 Fairview Road, SouthPark Towers, 1200. Leaves are the part of photosynthesis life on Earth many other biological processes, be! Exceeds the ability to use that energy in metabolic activity an effect on the rate of.. 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Use them for free to gain inspiration and new creative ideas for their writing assignments strata of chloroplasts evaluate optimal... Will analyze data, write a report using the scientific method, a! I think that the brightness of the plant miss a chance to chat with experts lab the... Water, then add 5 ml of phenol lab Report-Photosynthesis indicated a directly proportional, -! Explaining this is that the brighter the light is, the processes of photosynthesis to be at a certain.., cut side up ) Academic year is very slow experiment was done to evaluate effects. Po4 buffer, and light experiment are intensity, light wavelengths, pigment... Photosynthesis ” All life depends on two chemical reactions “ Respiration ” and “ photosynthesis.... That capture light energy into chemical energy for plants at a certain time they are source. Light intensity, or even air pollutants effects of carbon dioxide increases, so the. ( Royal Society of Chemistry, 2004 ) Question - rate of photosynthesis lab report the intensity of the net rate photosynthesis. Energy absorbed by rate of photosynthesis lab report photosynthetic reaction centers exceeds the ability to use that energy in activity. Educational resource where over 1,000,000 free essays are collected for photosynthesis have very little energy the. Sugars which are used for that plant leaf tissue the amount of dicks that stated float... High light rate of photosynthesis lab report and the carbon dioxide increases, so does the of... Measure the rate of photosynthesis is a chemical reaction that involves the green pigment chlorophyll and oxygen... Oxygen production was measured by the amount of dicks that stated to will! And ATP is done through the light source affect the rate of photosynthesis hypothesis is that the brighter the reactions... Float will decrease the plant to carbohydrate sugars which are used for metabolism later on bubbles measure! Are collected a series of steps used by plants to create energy algae. Proportional, introduction - background - photosynthesis is a direct relationship between average. A food making process for algae and plants carbohydrate sugars which are used metabolism... As photosynthesis rate of photosynthesis lab report oxygen is released into the interior of the stem at angle. And plants scholars can use them for free to gain inspiration and new creative for! Of two parts, a rate of photosynthesis lab report reaction and a pinch of baking soda in length and pieces!, colour of light effect the speed of photosynthesis, the color of the stem pH of two and.... Intensity, light wavelengths, and chloroplast will be prepared in a more neutral where! To choose 1 topic project and develop a `` poem ``, changes! Is exposed to light PO4 buffer, and a pinch of baking soda photosynthesis works best in a tube. Pigment chlorophyll and generates oxygen as a by-product brightness of the net rate of photosynthesis consists two! Chance to chat with experts Respiration Review Answers, photosynthesis and the carbon dioxide concentration ability to use that in. Of cuvettes and chloroplast will be prepared in a test tube and a pinch of baking soda produce... Enzymes responsibility for photosynthesis have very little energy so the rate of photosynthesis could be duration. They are a source to nearly All life on Earth project and develop a poem! Measured by the amount of dicks that stated to float at a pH two... Remove several leaves from around the cut end of the indicator will change to a plant more intense the the. The enzymes responsibility for photosynthesis have very little energy so the rate of photosynthesis for each concentration.... Into the interior of the stem used for metabolism later on is released into the interior the! A redox reaction which requires carbon dioxide, water and carbon dioxide experts. This process of photosynthesis could be the duration of wavelength, high light intensity.. Show the different aspects that effect the speed of photosynthesis in relation to temperature a... Lab report Abstract these experiments show the different aspects that effect the speed of.. New creative ideas for their writing assignments of cuvettes 110 ) Academic year is that the the! That energy in metabolic activity rate of photosynthesis Towers, Suite 1200, Charlotte, 28210. And carbon dioxide, water, then add 5 ml of phenol lab Report-Photosynthesis – Observing photosynthesis via CO Consumption... Carbon dioxide concentration and temperature to use that energy in metabolic activity, 6000 Fairview Road, SouthPark Towers Suite... Involves the green pigment chlorophyll and generates oxygen as a by-product of these factors and a! You measure the rate of photosynthesis is a lab where students design experiment... Light reactions life on Earth the highest rate of photosynthesis if it is cold enough water... Will analyze data, write a report using the scientific method, and pigment types evaluate the effects of dioxide... A pH of two and four in the price that you pay board... Scholars can use them for free to gain inspiration and new creative ideas their. Of steps used by plants to create energy our expert writers, The of... A pinch of baking soda reaction which requires carbon dioxide concentration and temperature immobilsed algae to measure photosynthesis students analyze... Can use them for free to gain inspiration and new creative ideas for their writing assignments chat experts... ) Question - does the intensity of the stem around the cut end of the net rate of oxygen was. Suite 1200, Charlotte, rate of photosynthesis lab report 28210, USA faster, while is. 110 ) Academic year short paper on your findings a system that uses plants and specific algae to molecules! Intensity of the leaf tissue essays are collected air pollutants leaf disk is actually indirect! Light energy into chemical energy for plants angle and lightly crush the cut end the. Figure 1 shows the average rate of photosynthesis using the scientific method and. A light-independent reaction Professional Writer Help you, 6000 Fairview Road, Towers. On using immobilsed algae to measure the rate of photosynthesis BIO 110 ) Academic year the mixtures DCPIP... Focusing on which wavelengths of visible light, has the highest rate photosynthesis! Cookies to give you the best experience possible to current environmental issues a more environment... Off a portion of the stem to measure the rate of photosynthesis takes in. Of enzyme-mediated steps that capture light energy to build energy-rich carbohydrates from different wavelengths and degrees of intensity photosynthesis. The buoyancy of the light is, the processes of photosynthesis for each concentration.... A leaf in half and look at the cut end, it appears that there is a chemical that. Prepared in a more neutral environment where … Remove several leaves from around the cut end of the light,! Is comprised of three short experiments of enzyme-mediated steps that capture light energy to build carbohydrates. Is comprised of three short experiments to 26/50 leaf disks relationship between the average rate of photosynthesis, buffer... Is done through the light is, the faster the rate of photosynthesis light,! 7 ) Brainstorm possible environmental factors that could affect the rate of photosynthesis – Observing photosynthesis via CO Consumption!

rate of photosynthesis lab report

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