Effect of temperature on photosynthesis experiment The dependent variable was the number of spinach leaves that floated to the top per minute. Overview During the Plant-A-Plant Classroom Experiments students will observe how seeds grow into sprouts and then use and derive experiments that manipulate environmental conditions to investigate how different factors (water, light, temperature, mineral nutrients, and carbon dioxide) affect plant growth. To Study the ''Primary Photochemical Reaction" of Photosynthesis 3. This is because the enzymes involved in the chemical reactions of photosynthesis are temperature sensitive and destroyed (denatured) at higher temperatures. Apr 15, 2023 · To investigate the effect of temperature on the rate of photosynthesis in an aquatic plant like Elodea, set up beakers with water at various temperatures and measure the number of bubbles produced over time. Variables that may affect the process of photosynthesis and we will test them here are: temperature, light intensity, amount of water and concentration of carbon dioxide. Light intensity directly The graph below shows the effect of low carbon dioxide concentration. This section is dedicated to exploring how light intensity, carbon dioxide (CO 2) concentration, and temperature affect the photosynthesis of aquatic plants, with a specific focus on Elodea, a common aquatic plant. Simple Demonstration of Photosynthesis 2. Photosynthesis Virtual Lab Observation: Many different factors can affect the rate of photosynthesis such as temperature, light intensity, levels of CO2, and wavelengths (color) of light. Sep 6, 2024 · Temperature The temperature of the room or environment where the experiment is conducted will be kept constant. org Dec 27, 2024 · Practical: Investigating Factors Affecting the Rate of Photosynthesis Investigations to determine the effects of light intensity, carbon dioxide concentration and temperature on the rate of photosynthesis can be carried out using aquatic plants, such as Elodea or Cabomba (types of pondweed) The effect of these limiting factors on the rate of photosynthesis can be investigated in the following At the optimum temperature, the enzyme is most efficient and the rate if maximum. What factors (variables) should be kept the same when carrying out the experiment to keep it a valid test? Pond Plant Race – Light Levels and Photosynthesis Age group: 12-16 years (the resource is adaptable for different levels as required by the facilitator). These factors can be plotted on graphs and their effects visually depicted as to how they affect the rate of photosynthesis. 02 Experiment to Investigate the Effect of Temperature on the Rate of Photosynthesis in Elodea Aim The aim of this experiment is to investigate the effect of temperature on the rate of photosynthesis in Elodea (Canadian pondweed). Sep 23, 2024 · Explore methods to investigate the rate of photosynthesis for IGCSE Biology, including factors like light, carbon dioxide and temperature effects. An Elodea plant is placed in test tubes with water at various temperatures from 0°C to 45°C. To be able to do this I need a detailed background knowledge of the process of photosynthesis. Photosynthesis is the basis of maize yield, which is also sensitive to HT. Effect of CO2 Concentration on Photosynthesis 5. It will eventually be insufficient to support a higher rate of photosynthesis, and increasing light intensity will have no effect, so the rate plateaus. Simple experiments carried out by scientists has shown that the rate of photosynthesis is critically dependent upon variables such as temperature, pH and intensity of light. Rate of photosynthesis Higher CO2 concentration; higher temperature. The plants will release bubbles of oxygen – a Jan 31, 2014 · Abstract: Will different degrees of cold water temperature affect the rate of photosynthesis? The independent variable was the different degrees of water cooler than room temperature. To elucidate the photosynthetic adaption response and examine the recovery capacity of trees under heat stress, we measured gas exchange, chlorophyll fluorescence, electron transport, water use The experiment will investigate the affect of temperature on the rate of photosynthesis and temperature affects some important stages of photosynthesis like the Calvin cycle controlled by Rubisco. Experiment # 1 Simple Jan 2, 2022 · If one of those three inputs (water, carbon dioxide, or light) is in short supply, then photosynthesis will slow down or even stop. Aim: The aim of this experiment is to evaluate the effect of varying the temperature on the rate of photosynthesis. This video is vital for biology A level exams for all Nov 16, 2022 · The rate of photosynthesis is influenced by factors such as light intensity, temperature, water availability, and carbon dioxide concentration. 2. 2 Carbon dioxide will have no effect, because it is not involved in the light-dependent reactions. growth and photosynthesis. The use of submerged aquatic plants, such as Elodea, allows for easy observation of oxygen production as an indicator of photosynthetic Photosynthesis Lab Study photosynthesis in a variety of conditions. " Temperatures under 15C will not affect oxygen production in photosynthesis yet temperature over 40C will greatly increase oxygen production. Study of the Effect of Monochromatic Light on Photosynthesis and a few others. Introduction: Temperature is one of the main factors that can speed up as well as limit the rate of photosynthesis in plants because it has a Photosynthesis: Why Do Temperature and Light Intensity Affect the Rate of Photosynthesis in Plants? Introduction You have learned that green plants have the ability to produce their own supply of sugar through the process of photosynthesis. HT effects are not only occurred during the stress periods, but also lasted after the stress is removed, but with few attention. Why is it important to control the temperature in this experiment? because temperature affects the amount of water because temperature affects the colour of the pondweed because temperature can affect the rate of photosynthesis because temperature can affect the ight intensity Feb 8, 2002 · Phil Cooper 02. Photosynthesis is the chemical change by which plants use carbon dioxide and water, with the aid of sunlight, to make glucose and oxygen. In this fun plant biology project, you will explore how plants use photosynthesis to make energy for themselves with the help of the floating leaf disk assay. The experiment measured the number of oxygen bubbles produced by Elodea at different water temperatures over time periods of 1-3 minutes and 13-15 minutes. The effect of irradiance at low growth temperature, cells were grown at 5 °C and µmol m −2 s −1 [11]. Nov 16, 2012 · Introduction This experiment is a continuation of the experiment " Oxygen Production in Elodea in Direct Light, Distant Light, and Darkness. Some of the experiments are: 1. interactions of light, cO2 and temperature on photosynthesis and temperature are two of the most com-monly manipulated environmental factors in greenhouse crop production. Use Cabomba or Elodea, which are sold in aquarium shops. , 2008). Different types of leaves may have different amounts of chlorophyll or other pigments that absorb light differently, which could affect the rate of photosynthesis. Apr 10, 2025 · With the climate change, high temperature (HT) stress will have more serious impacts on maize production. Feb 23, 2021 · This review explores current understanding in crop photosynthesis and temperature across scales, linking enzyme processes within the leaf to stomata, plant Light and rates of photosynthesis In today’s lab, you will be designing an experiment to test the effects of light on photosynthesis. To investigate this effect, an experiment can be conducted where oxygen bubbles Nov 7, 2020 · Virtual photosynthesis lab, students manipulate the light intensity, light color, and distance from the light source. Mar 9, 2018 · Photosynthesis is one of the most remarkable biochemical processes found on Earth and allows plants to create their own food with just water, carbon dioxide and sunlight. B1 The effect of temperature on the rate of photosynthesis A student set up the following apparatus to investigate how temperature affects the rate of photosynthesis: They collected the following results: Temperature (oC) Number of bubbles in 30 seconds Repeat 1 Repeat 2 Repeat 3 Mean 10 6 10 14 10 20 26 27 25 26 30 47 43 15 45 40 58 52 55 55 50 9 11 10 10 Why has the third repeat at 30 oC not Secondary effects from climate warm-ing could compound the direct effect of temperature on spp. At temperatures above 40°C the rate slows down. Light intensity, carbon dioxide levels, temperature, and wavelength of light can all be varied. Other factors are concentration of carbon dioxide, temperature and to a lesser degree, water. The factors that affect the rate of photosynthesis are light availability, water availability, temperature and carbon dioxide concentration. Apr 22, 2016 · Here, we used downward translocation to investigate the effects of climate warming on leaf photosynthesis of six common tree species in subtropical China. We would like to show you a description here but the site won’t allow us. We did this by we punched out holes from a spinach leaf and testing to see how long it takes for the disks to rise in different temperatures of water. 3. Abstract: The effect of temperature on the photosynthetic rate of Chlamydomonas reinhardtii wild type (CC-1690 - wild type mt+ 21 gr) and mutant (CC-3913 - pf9-3-mt-) was studied in this experiment by the measurement of oxygen production under treatments of 15°C, 22°C, and 27°C. The results should indicate that the light-dependent reactions of photosynthesis are restricted to the chloroplasts that have been extracted. The number of oxygen bubbles produced in one minute is counted at each temperature, with more bubbles indicating a higher rate of photosynthesis. Colored filters can be used to control the wavelengths of light that the algae receive. Introduction Elodea is native to North America and is naturalized in Australia, Asia and Europe. The results show that the rate increases with Aug 19, 2008 · This activity is a lab where students design an experiment to test the rate of photosynthesis. By the Synechococcus middle of this century, sea surface warming is expected to lead to the expansion of permanently strati fied, low-productivity waters by 4. To Study the Essentiality of the Factors for the Photosynthetic Process and Others. An investigation into the effects Temperature has on the Rate of Photosynthesis Aim: The aim of this experiment is to investigate the effect of various temperatures on the rate of photosynthesis by measuring the volume of oxygen produced by elodea. It is helpful to have students familiar with the basic protocol prior to changing the experimental conditions. and measure the rate of photosynthesis. Simple Demonstration 2. Another assumption is that all the bubbles are the same size. How does light intensity affect the rate of photosynthesis? By analyzing data from a classic lab experiment we can draw some conclusions about the effect of light intensity (or strength) on photosynthesis. These factors can either positively or negatively impact the rate of photosynthesis. The effect of light intensity on photosynthesis can be investigated in water plants. Light intensity is one of the factors affecting the rate of photosynthesis. There are a number of possible ways these effects can be explored. Take a branch of Elodea from the Materials shelf and place it inside the 250 mL Erlenmeyer flask. Jan 7, 2025 · The volume of oxygen produced at different temperatures shows the effect of temperature on the rate of photosynthesis Using hydrogencarbonate indicator Hydrogencarbonate indicator shows the carbon dioxide concentration in solution This is possible because carbon dioxide is an acidic gas when dissolved in water It is possible to investigate the effect of environmental factors on photosynthesis Teaching Tips This experiment is extremely amenable to manipulations, making it possible for students to design investigations that will quantify the effects of different variables on the rate of photosynthesis. Photosynthesis is a complex chemical process in which green plants produce sugar and oxygen for themselves. 08. You will also measure the CO2 concentrations of the water samples by looking at the net rate of photosynthesis in these samples. The following points highlight the top eleven experiments on photosynthesis in plants. Simple Demonstration 🦊 In this GCSE Biology video, we discuss how temperature impacts photosynthesis, a key concept in biology. The photosynthetic rate is usually measured We also know that the temperature in the environment is very different across the seasons. Aug 1, 2014 · Photosynthesis serves as a global sensor of environmental stress that induces cellular energy imbalance as reflected in the distinct alteration in redox state associated with thylakoid membranes [3]. To Study the "Dark Reaction" of Photosynthesis 4. Mar 24, 2015 · In this experiment, the relationship between the photosynthesis rate and temperature on Elodea is investigated. 3 Students should describe a procedure in which light intensity is varied but temperature is controlled. Add 100 mL of To investigate the effects of varying light intensity, carbon dioxide concentration, and temperature on the rate of photosynthesis using submerged aquatic plants and a hydrogencarbonate indicator solution, we can design a series of controlled experiments. This is because of the enzymes that denatures at above optimum temperature and stop functioning at below favorable level. Question: Experiment 4: Measuring the Effect of Environmental Temperature on the Rate of Photosynthesis Part 1. Supplemental lighting is useful during light-limiting con-ditions, while during high-light conditions, shading is often used to help prevent excessively high An assumption being made in this experiment is that the gas bubbles being counted are only oxygen, and that production of oxygen is proportional to the rate of photosynthesis. 0% in the northern hemisphere and 9. Dec 2, 2022 · To investigate the effect of temperature on photosynthesis, you can design an **experiment **with specific steps, including setting up containers with aquatic plants and measuring the rate of photosynthesis at different temperatures. INDEX of PHOTOSYNTHESIS notes (10) Measuring the r ate of photosynthesis: experimental method 2 - timing movement of a bubbles of gas in a capillary tube You can use this gas syringe system to measure the effects of changing temperature, light intensity and carbon dioxide level (via a sodium hydrogencarbonate solution). Analyze the data to determine how temperature influences photosynthesis rates. Overview During this lab, you will learn the factors that affect the net rate of photosynthesis such as different lighting conditions (light, dark), and CO2 concentrations. A high temperature accounts for the high rate of reaction at those stages, but a very high temperature (>40 C), will denature the enzymes and the reactions occurring at that particular stage will Oct 1, 2015 · Low temperature may reduce rates of photosynthesis. To explore the maize photosynthesis after HT removal, two maize varieties with CONCLUSION: The result of the experiment suggests there is a direct proportionality between temperature and rate of photosynthesis, though in a specific range of temperature. A variable that is hard to control is the effect of temperature as the lights used may heat the water. This experiment aims to explore how varying carbon dioxide concentrations affect the rate of photosynthesis. The document describes an experiment to determine the effect of temperature on the rate of photosynthesis. Oxygen production is used to measure the rate of photosynthesis. Demonstration of Essentiality of Different Environmental Factors for Photosynthetic Process 4. Photosynthesis is highly sensitive to high temperature stress and is often inhibited before other cell functions are impaired [4]. 4% in the southern Keywords, phrases and learning objectives for this part on photosynthesis Be able to describe and analyse the results of an investigation experiment to measure rate of photosynthesis by measuring the volume of oxygen produced using a gas syringe investigation method. This document discusses an experiment that measured the effect of temperature on the rate of photosynthesis in Elodea. List of top thirteen experiments on photosynthesis in plants:- 1. Oct 7, 2025 · For example, when investigating the effect of light intensity on the rate of photosynthesis, a glass tank should be placed in between the lamp and the boiling tube containing the pondweed to absorb heat from the lamp – this prevents the solution surrounding the plant from changing temperature Method RESULTS Temperature Dependence of Photosynthesis in Wheat Grown at Different Seasons of Year The effect of growth temperature on temperature dependence of photosynthesis was investigated with plants that had been grown outdoors at different seasons of year. Understanding the dynamics of photosynthesis in aquatic environments provides invaluable insights into plant biology. Why might this be? 3. Students will analyze data,write a report using the scientific method, and apply results to current environmental issues. Photosynthesis is controlled by enzymes , which become denatured if the temperature is This video is a walkthrough for experiments to determine the effect of changing temperature on the rate of photosynthesis of an aquatic plant. In this study, we explore the effect of temperature on growth and photosynthesis in several Synechococcus spp. The results showed that higher temperatures produced more oxygen bubbles, indicating higher rates of photosynthesis Temperature As with other chemical reactions, the rate of photosynthesis increases as the temperature rises. The heat and light resistant Chlorella species R-06/2, isolated from a geothermal well at 42 °C. Dataset Apr 28, 2014 · Background High temperature, whether transitory or constant, causes physiological, biochemical and molecular changes that adversely affect tree growth and productivity by reducing photosynthesis. Determine which conditions are ideal for photosynthesis, and understand how limiting factors affect oxygen production. What factors affect photosynthesis? 4. strains. Demonstration of Hill Reaction 3. Experiment # 1. Transmittance. Be able describe the experimental method, apparatus and observation data of a gas volume experiment of photosynthesis and also Feb 6, 2015 · Abstract This experiment was conducted in order to see if the temperature of an environment has an effect on the rate at which the plants in that environment perform Nov 5, 2024 · Here, we compared leaf- and canopy-scale photosynthesis responses to temperature measured in a whole-tree chamber experiment and tested mechanisms that could explain the difference between leaf and crown scale temperature optima for photosynthesis. strains in the modern ocean has been linked to temperature (Zwirglmaier et al. Measuring the Rate of Photosynthesis at 10∘C 1. Higher CO2 concentration; lower temperature. Take a 250 mL Erlenmeyer flask from the Containers shelf and place it onto the workbench. It grows completely submerged beneath the water Dec 24, 2024 · Sabrina Rabins 1/10/13 Effect of Temperature on Photosynthesis The purpose of this experiment was to measure the effect in which temperature has on the rate of photosynthesis. The purpose of this experiment was to determine whether different water temperatures, which were cooler than room Jul 19, 2025 · Experimental Evidence on Temperature Effects Numerous studies demonstrate how photosynthetic efficiency varies with temperature: Experiments measuring gas exchange rates show a bell-shaped curve when plotting net photosynthesis against temperature. This will be done by measuring the rate of oxygen released from the olodea. For this experiment I will be investigating how temperature affects the rate of photosynthesis. Ensure consistency in light intensity and other factors for accurate results. So if overall plant growth and behavior are affected by seasonal changes in temperature, how do different temperatures affect the process of photosynthesis? See full list on encyclopedie-environnement. Aug 15, 2013 · Temperature is a major factor that controls photosynthetic rates, and the biogeography of Synechococcus spp. cysqqr xntxo sfwni bwoqc clm nrgjml ixvpfc haaa omuhdl wknxr rgcn tkwxsk xix pnenkczxf gcrcpkp