effect of light intensity on photosynthesis experiment

I will set up my experiment using the following equipment: 1) test tube filled with water and 0.50 of sodium bicarbonate, 2) a plant that lives in a water ecosystem, 3) syringe connected to a clear tube and then to the test tube (with the plant inside). So a greater light intensity gives a greater rate of photosynthesis. StudyMode.com, 03 2004. According to past comparative studies, the dry matter of roots, stems, leaves, and whole plant as well as the photosynthetic rate, transpiration, an… To work out how light intensity can affect the rate of photosynthesis. The results did approximately what I expected them to do ; decrease as the light was moved away so reducing the light intensity approximately proportional to the distance of which the lamp was moved. Photosynthesis occurs in leaves that contain specialized cell structures called chloroplasts. The effect of light intensity on the rate of photosynthesis Photosynthesis depends on the amount of light available. 03 2004. Discover great essay examples and research papers for your assignments. Explanation. 4. Prediction. Chloroplasts contain molecules of a green pi... ...Chlorophyll Extraction ...The Effects of Light Intensity on the Rate of Photosynthesis Affect the Rate of Photosynthesis The concentration of water, carbon dioxide, the temperature and the light intensity are the most common environmental factors to affect photosynthesis (Lincoln 2010). This is only a demonstration of working method which can be refined and used for a full scale science project. 03, 2004. In this experiment, the light intensity is changed by changing the distance of the source of light closer or further away from the elodea, so theoretically, when the intensity becomes stronger due to the light source being closer to the Elodea, the rate of photosynthesis should increase and therefore the number of oxygen bubbles will increase too. affect how quickly photosynthesis takes place within a plant. The aim of my experiment is to find out how light intensity affects the rate of photosynthesis. And finally sunlight is needed for the process of photosynthesis to take place. Photosynthesis is the process by which a plant cell converts carbon dioxide (CO2) to food sugars via light energy. Water is essential for the process of photosynthesis and also to stop the plant from wilting, because plant cells take up water via osmosis which makes them tight or turgid and so the plant stays upright, but if there is no water in the cell then the cell becomes flaccid and loose causing the plant to wilt and die. University Of Botswana To work out how light intensity can affect the rate of photosynthesis. As that is where the syringe will suck in the oxygen as shown below in the diagram. The plant then uses the glucose to produce energy which the plant needs to sustain life. V Does The Light Intensity Affect the Rate of Photosynthesis The Investigation In this experiment I will investigate the affect in which the light intensity will have on a plants photosynthesis process. Photosy... ...Introduction: Photosynthesis is the process by which green plants use the light energy to convert carbon dioxide and water into simple sugar called... ...Chlorophyll Extraction Water is taken in via the root hairs which stick out in to the soil, these are located on the roots themselves, because of these root hairs this gives the plant a bigger surface area in which it can absorb more water. There fore I only plan to change the sunlight intensity because I feel that this would be the best variable for me to change to find out how light intensity affects the rate of photosynthesis. carbon dioxide from the air and water... ...Introduction: Photosynthesis is the process by which green plants use the light energy to convert carbon dioxide and water into simple sugar called glucose, which provides a basic energy source for the plant. Photosynthesis can be defined as the production of simple sugars from carbon dioxide and water causing the release of sugar and oxygen. This will be done by measuring the bubbles of oxygen and having a bulb for the light intensity variable. I did not have any anomalous results. Background: Photosynthesis is a process that plants undergo to produce glucose. In this experiment I will be investigating the impact of light intensity on the rate of water uptake, due to transpiration, by attaching a shoot from a leafy plant in the capillary tube of a potometer, and then measuring how long it takes for a bubble to move a set distance. Then from the syringe I will fill it with water and then ensure that the syringe head is pushed entirely in. The aim of the experiment was to determine whether different light intensities have different effects on the rate of photosynthesis of two plants, one grown in normal light conditions and one grown in shade conditions. I think that the further away the light source is the smaller the rate of photosynthesis is. 1. this is the same with the stomata pores except when they are turgid the pore opens and when flaccid the pore is closed. What is Photosynthesis? The Effect Of Light Intensity On The Rate Of Photosynthesis 1919 Words | 8 Pages. Plants, through the use of chlorophyll (green pigment in plants) that traps light can generate ‘food’ by combining carbon dioxide in the air and water. The effect of light intensity followed a Michealis-Menten curve where increases in light intensity corresponded to increases in oxygen production until a peak in oxygen production occurred at a light intensity of 6000 lux. I predict that as the light intensity increases that the rate of photosynthesis will increase in proportion, so for example if you increase the light intensity from 10cm away to 20 cm away form a stationary plant. This will be done by measuring the bubbles of oxygen and having a bulb for the light intensity variable. GROUP MEMBERS: MARITONI VALENCIA, SANGITA TAMANG, RYUTARO SEIKI AND MAO In photosynthesis, a plant takes There are many factors, which affect the rate of photosynthesis, including light intensity, temperature and carbon dioxide concentration.”, Taken from www. Hypothesis The effect of light, temperature and carbon dioxide in the air can be measured experimentally, varying one factor while keeping the others the same. The only changes I will be making is to the light intensity by moving it closer or nearer to the plant. glucose is the resulting energy that is needed by the plant to grow and survive. The fact that all plants need light in order to photosynthesise has been proven many times in experiments, and so it is possible to say that without light, the plant would die. Use Cabomba or Elodea, which are sold in aquarium shops. This is because light energy is a driving force in photosynthesis, and one of the products of photosynthesis (oxygen) causes the leaf chads to float. There for the rate of photosynthesis will decrease proportionally with the distance of the light from the plant (in this case a half). In this experiment a 100 Watt bulb was used. ; 01:22 What colour is the indicator solution at the start? #41 Effect of Light intensity on the rate of Photosynthesis Plants need light energy to make the chemical energy needed to create carbohydrates. This will then reveal, (after a pre-set time of 5 minutes timed by the stopwatch) how much oxygen was given off measured in cm by the ruler next to the tube. This easy science project shows simple and efficient method of chlorophyll extraction from a plant. ...In my investigation I am going to establish the effect of changing light intensity on the rate of photosynthesis. Experiment to demonstrate that carbon dioxide enters the leaf through the stomata: 7. The autora- diographic studies reported in Table 1 were done with algae from a temperature of 57C, where algal standing crop is the highest (Brock and Brock 1966; Brock 1967a). According to my results my prediction was correct. When the light intensity is … LIGHT INTENSITY. My test will be fair, as I will be using the same equipment throughout my experiment and I will be taking all of the measurements throughout the experiment. Although the closer the light source is, the more p... ...does light intensity and carbon dioxide levels affect photosynthesis rate 4) Two rulers 1 meter ruler to measure distance of light from plant and the other 30 cm ruler to measure the amount of oxygen given off from photosynthesis. You will notice that they are not direct halves of each other this is because of how much oxygen the plant decides to give off will change. ...Aim I predicted that as the light moved away the rate of photosynthesis decreases proportionately to the distance the light is moved away. The rate falls gradually, and at a certain CO2 concentration it stays constant (from point B to C). Increasing the light intensity will … Then I will measure at 11 different distances (three times each) of the light away from the test tube with the plant in and then pull the syringe head out. Plant Growth Plant growth processes involve the use of light, carbon dioxide and water to manufacture food for the plant’s use, according to the Texas A&M University Agricultural Extension Service. I will follow the following safety precautions to make sure the test goes well. Background: Photosynthesis is a process that plants undergo to produce glucose. Your Task Design a series of experiments to determine how temperature and light intensity affect the rate of photosynthesis in spinach. why plants have leaves, roots or being green is all linked "The effect of light intensity on the rate of photosynthesis" StudyMode.com. This is obtained by firstly the sunlight shining down on a plant, which gives the energy for the reaction to take place. (Root hairs also collect minerals and nutrients for the plant through active uptake). First I will make sure that the temperature is set at 30 degrees Celsius. Photosynthesis is the process that plants use to create energy for themselves. This is because there is a further distance for the light to each the plant in order for it to photosynthesise. Graph 1. 201102379 I don’t feel that I could improve the way I carried out the experiment. This will be done by measuring the bubbles of oxygen and having a bulb for the light intensity variable. Our library contains thousands of carefully selected free research papers and essays. This is because light plays a major role in photosynthesis, it helps the leaf to give out oxygen and take in carbon dioxide from the atmosphere which is polluting our world. 03 2004 , "The effect of light intensity on the rate of photosynthesis" StudyMode.com. This means that as the light moves away then there is less light given to the reaction for photosynthesis to happen. I predict that as the light intensity increases that the rate of photosynthesis will increase in proportion, so for example if you increase the light intensity from 10cm away to 20 cm away form a stationary plant. Is occurring ( faster than respiration ): //www.studymode.com/essays/Effect-Light-Intensity-Rate-Photosynthesis-64970458.html >, `` effect! To produce glucose located in the presence of light increases, so will the rate of decreases!, which are directly related to a plant cell converts carbon dioxide, and! 03 2004 < https: //www.studymode.com/essays/Effect-Light-Intensity-Rate-Photosynthesis-64970458.html >, `` the effect of light intensity and photoperiod had effects on effect. Indicator solution after illumination prediction... to investigate the effects of light affects! In this experiment a 100 Watt bulb was used called chloroplasts sugars via energy! 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