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# Rate of photosynthesis experiment graph

Graph showing rate of photosynthesis and light intensity The role of light in photosynthesis can be investigated in several ways. In this experiment, a light is moved further from a.. rate can be reached before the rate again plateaus. If carbon dioxide and light levels are high, but temperature is low, increasing temperature will have the greatest effect on reaching a higher rate of photosynthesis. Finding out How might the factors that affect the rate of photosynthesis be investigated? Design a suitable series of experiments

### Measuring the rate of photosynthesis - Apparatus and

1. Light intensity and the rate of photosynthesis. Plot a graph of Light intensity (independent variable) against Absorbance at 550nm between the colour of the hydrogen carbonate indicator in the lids at different light intensities at the end of the experiment is due to a difference in the rate of photosynthesis
2. ished at a rate of -0.079724 ppm/s. When the temperature increased to 35o C, the carbon dioxide di
3. Investigating the rate of photosynthesis. This is an example of a common experiment used to investigate light intensity and the rate of photosynthesis
4. (B) The readings show that the rate of photosynthesis is more in sun. (C) The readings show that the rate of photosynthesis is the highest in red light and lowest in green. (D) This experiment shows that photosynthesis occurs at a rapid rate from 10 to 35°C, provided other factors are not limiting. Experiment - 4: Object
5. Graph the results placing temperature on the x-axis. Explanation. At low temperature, the enzyme does not have enough energy to meet many substrate molecules, so the reaction is slowed. When the temperature rises, the particles in the reaction move quicker and collide more, so the rate of photosynthesis rises also

Preliminary experiment. Before doing my actual experiment I have decided to do a preliminary investigation; I have done this to overcome errors and mistakes. I have produced a table and graph to show the effect on the rate of photosynthesis when light intensity is increased or decreased. Predictio Photosynthesis represented by the equation 6H 2 O + 6CO 2 → C 6 H 12 O 6 + 6O 2 is one of the most crucial chemical reactions on earth as it produces O 2 molecules- a gas vital to the survival of many organisms (Vidyasagar, 2018) This process takes place during the light dependent phase of photosynthesis and is indicated by the production of bubbles and can be used to analyse the rate of. The graph 8.22 was plotted to show the relationship of light intensity on the rate of photosynthesis. This graph is used to support the graph 8.21 produced earlier so that the result obtained can be claim to have a high certainty and it is proven to be right On the graph the less the light intensity the lower the gradient of the curve. the equation for the photosynthesis process is; CO2 + 2H2O + Light Energy ========> [CH2O} + O2 + H2O Start studying Rate of Photosynthesis (graphs). Learn vocabulary, terms, and more with flashcards, games, and other study tools

To Study on the methods of Measuring the Rate of Photosynthesis: (a) Rate of photosynthesis in aquatic plants: Experiment: Rate of photosynthesis may be measured by counting number of bubbles per unit time (Refer Expt. 1.a or 1.6) or by measuring the volume of O 2 evolved per unit time (Refer Expt. 5.b). N.B 1) learn that the rate of photosynthesis is influenced by environmental factors that can be quantified 2) understand the equation of photosynthesis and how the structure of a leaf allows for the required gas exchange to occur through the stomata 3) properly design an experiment with one variable, analyze results and report findings to the clas

### Rate of photosynthesis: limiting factor

• The problem with ET50 is that it goes down as the rate of photosynthesis goes up--it is an inverse relationship and creates the following type of graph (data from Steucek, et al. 1985.): To correct for this representation of the data and present a graph that shows increasing rates of photosynthesis with a positive slope the ET50 term can b
• After completing the experiment described above, students designed their own experiments to test various environmental factors on the relative rate of photosynthesis. One student set up two cups, each with 200 mL of 0.5% bicarbonate solution. The bicarbonate solution of one cup was heated to 35o Celsius, while the other was kept 20o Celsius
• 1] above which the rate does not increase because the light saturation point has been reached and another factor (CO 2 concentration or temperature) is limiting. In this experiment, the light intensity is changed, by decreasing the light intensity. The rate of photosynthesis should decrease and therefore the amount of oxygen bubbles should.
• If an experiment was conducted to test the rate of photosynthesis in room, cold, and warm temperature environments, then the leaves in the warm temperature environment will photosynthesize completely the fastest. In order for photosynthesis to occur, a plant needs a source of light and the most common one is the sun

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. Another assumption is that all the bubbles are the same size. A variable that is hard to control is the effect of temperature as the lights used may heat the water Measuring photosynthesis via the uptake of carbon dioxide . 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. Read the full protocol on using immobilsed algae to measure photosynthesis Net rate of photosynthesis for young leaf = 1 = 1 = 0.20 min-1 ET 50-light 5 min Net rate of photosynthesis for old leaf = 1 = 1 = 0.125 min-1 ET 50-light 8 min Therefore, the old leaf has a net rate of photosynthesis that is lower than the young leaf

### Investigating the rate of photosynthesis - Photosynthesis

Figure 1 shows the average rate of photosynthesis for each concentration tested. Based on the graph, it appears that there is a direct relationship between the average rate of photosynthesis and the carbon dioxide concentration. In other words, as the carbon dioxide increases, so does the rate of photosynthesis In experiment 2, students specifically look at light color to determine which wavelength of light increases the rate of photosynthesis. Students should discover that green light has a very slow rate. Their collected data is then compared to a graph of the absorption spectrum of light Experiment 2 Exercise 2 EB Data Table 3 P Graph 2 Data Table 3: Photosynthesis Investigation Question: Hypothesis: Experimental Design: tv Exercise 2 - Questions 1. Report your data. Upload images of any graphs or tables you have created in Graph 2. U B 1 T 0 Word(s) T2 2

Experiment to show the rate of photosynthesis with different light intensities Aim: My aim is to find out the different rates of photosynthesis with different light intensities.Prediction:NumberOfBubblesDistance From PlantAs shown in the graph I think as the distance from the plant increases the number of bubbles will decrease Mrs Peers-Dent shows you how to measure the rate of photosynthesis of pondweed.-----00:00 Preparing the sample02:34 Changing. In a pH 10 solution,the rate of photosynthesis was the third highest. At 0:00, there were no discs floating; at 0:30 and 1:00, there were five discs floating; and from 1:30 to 2:30, there were eight discs floating. In a pH 2 solution, the rate of photosynthesis was the fourth fastest

The preliminary experiment I did has helped me to decide in which conditions / measurement I will use. The reason in which I will keep the other variables the same is because if increased they would increase the rate of photosynthesis making the experiment pointless and a waste of time 27. The net photosynthesis equation for the sample experiment: 28. The slope of the graph is the rate of net photosynthesis in ppm/min. In our example the respiration rate is 0.59 ppm/min and the net photosynthesis rate is -0.2 ppm/min. The photosynthesis rate is with a minus sign because the CO 2 decreased. The gross photosynthesis rate is

By this graph we can tell when the rate of photosynthesis occurred and how long it took for the disks to float. The estimated time for 50% of the leaves to be floating for the first variable is 4 minutes and 30 seconds The rate of photosynthesis increases linearly with increasing carbon dioxide concentration. Gradually the rate falls of and at a certain carbon dioxide concentration the rate of photosynthesis stays constant. After that point, the rise in carbon dioxide levels has no effect on the rate of photosynthesis. In our experiment, we are going to. This experiment involves the unit regarding photosynthesis. In this experiment spinach circles go through photosynthesis to produce oxygen. In order for the spinach to gather light they have chlorophyll, a pigment that absorbs light to power photosynthesis.This experiment, because it uses CO2, regards the Calvin cycle.The Calvin cycle is the process of taking CO2 and fixating it into PGAL The action spectrum is graph showing the rate of photosynthesis at different wavelengths of light. The rate of photosynthesis is based on a measure of the amount of CO 2 consumed or the amount of O 2 released. As you can see the absorption spectrum also corroborates the work of Engelmann

### Top 10 Experiments on Photosynthesis (With Diagram) Botan

This is the rate of photosynthesis at that particular concentration of CO2. The gas should be checked to prove that it is indeed oxygen - relights a glowing splint. Repeat at different lower CO2 concentrations by using different dilutions of a saturated solution. Graph the results placing CO2 concentration on the x-axis blocking the light that would make the rate of photosynthesis slower. This made the light have a shorter, more energetic wave, exciting the electrons in the second photosystem more quickly. Because the experiment was done two times, some trends were noticed. It was observed that the red light showed the fastest rate of photosynthesis of the. Learn about photosynthesis. Design an experiment to test how light affects photosynthetic rates. when the rate of respiration is greater than the rate of photosynthesis, the CO 2, concentration will increase, and pH will fall. o Plot a graph showing the relationship between pH and your experimental variable

Procedure This experiment will look at the affect of light intensity on the rate of photosynthesis on Elodea plants. - The rate of photosynthesis is determined by the number of bubbles formed by the Elodea plants. The oxygen bubbles are a product of photosynthesis According to the observations (qualitative data), Table 2, Table 3, Graph 1 and experiment done by Tania Lapa, photosynthesis rate is directly proportional with the light intensity but after a period of time the number of oxygen bubbles will remain constant but this investigation the number of oxygen bubbles was not constant because of the time. 5. What three factors can affect the rate of photosynthesis? 6. Draw a graph of the data shown in Table 2. Use a different color for each carbon dioxide concentration, but draw the traces on a single pair of axes so that you can compare the shape of the graphs more easily. Plot light intensity along the x-axis. 7

The x-axis shows the baking soda concentration in grams per 100 mL. The y-axis shows the rate of photosynthesis, or 1/ET50 in minutes-1. The rate of photosynthesis is 0.05 minutes-1 at 0.5 g/100 mL baking soda, 0.0625 minutes-1 at 1 g/100 mL baking soda, 0.08 minutes-1at 2 g/100 mL baking soda, and 0.09 minutes-1at 3 g/100 mL baking soda. Figure 4 (550 nm) will have the lowest rate of photosynthesis because very little light energy is absorbed. Sample: 2C Score: 6 The response in earned 1 point in part (a) for identifying bacteriorhodopsin is the pigment used to generate the absorption spectrum in graph I and chlorophyll a is the pigment used for Graph II measure and calculate rates of photosynthesis; extract and interpret graphs of photosynthesis rate involving one limiting factor; The most commonly used method to measure the rate of photosynthesis is to measure or observe the oxygen released from aquatic plant

### Effect of Temperature on the Rate of Photosynthesis

Make a graph that shows the photosynthesis rate for each tested variation. Plot your variable on the x-axis and the rate of photosynthesis (or 1/ET 50 ) on the y-axis. An example graph using the hypothetical data from Table 3 is shown in Figure 5 This experiment will look at the affect of light intensity on the rate of photosynthesis on Elodea plants. The rate of photosynthesis is determined by the number of bubbles formed by the Elodea plants. The oxygen bubbles are a product of photosynthesis. Plants have shown to produce more bubbles when Sample data and graphs. rate of. Refer to Figure 1, the rate of photosynthesis increases linearly with increasing light intensity (from point A to point B on the graph). Gradually the rate falls and at a certain light intensity, the rate of photosynthesis remain constant (from point B to point C on the graph). Hence, a rise in light intensity has no affect on the rate of photosynthesis as the other factors such as temperature. In this experiment we used a Sodium Bicarbonate to provide the Carbon Dioxide to the Calvin Cycle and tested the rate at which photosynthesis occurred by recording the times at which leaf pieces rose to the surface of a cup of water. We tested how the rate would be affected by a change in the concentration of Bicarbonate and used .3M and .2M.

Students learn a simple technique for quantifying the amount of photosynthesis that occurs in a given period of time, using a common water plant (Elodea). They use this technique to compare the amounts of photosynthesis that occur under conditions of low and high light levels. Before they begin the experiment, however, students must come up with a well-worded hypothesis to be tested. After. Experiment with different coloured filter paper/ cellophane and observe the effects on the rate of photosynthesis. We recommend wrapping one vial in red, blue or purple, and one in orange, yellow or green. If you have enough algal balls and cellophane, you can try the whole rainbow! Method 3: Varying the Number of Algal Balls per Via Experiment on Testing The Rate of Photosynthesis Under Different Exposure of Light and Distance of Light Cikal - Amri Secondary School MYP Year 8 Science Project By: Salsabil Inas Labiba Jakarta, Indonesia 201 In another experiment that was conducted with leaves, a graph was created to demonstrate the results of the relationship between light intensity and the rate of photosynthesis. What is unique about this experiment, though, is that the rate plateaued

Table 1. The Effect of Light Sources on the Rate of Photosynthesis Time (sec) Type of light (# of disks) Type of light (# of disks) Type of light (# of disks) 0 0 0 0 5) Gather the additional materials you need for your experiment. 6) Test the rate of photosynthesis using the procedure on the previous page. Be sure not to get any water on th Investigation: How Is the Rate of Photosynthesis Measured? Graphs: Lab Notebook Questions: 1. Which graph would be the most likely result of performing the photosynthesis experiment using fresh chloroplasts placed in light and DPIP? Graph A would most likely result of performing the photosynthesis experiment using fresh chloroplasts placed in light and DPIP The interplant distance that produces the greatest rate of areal photosynthesis (mg C per m2 per day), and thus the largest areal yield, is influenced by several factors, such as temperature extremes, light intensities and water availability The process of photosynthesis occurs in a series of enzyme-mediated steps that capture light energy to build energy-rich carbohydrates. 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.

3. Experiment to compare the rate of photosynthesis under different conditions with the help of Wilmott's bubbler: 4. Experiment to show the effect of different wavelengths of light during the process of photosynthesis: 5. Experiment to determine the amount of chlorophyll 'a', chlorophyll 'b' and total chlorophyll in a given plant. The rate of photosynthesis increases linearly with increasing light intensity (from point A to B on the graph). Gradually the rate falls of and at a certain light intensity the rate of photosynthesis stay constant (from point B to C on the graph). Here a rise in light intensity has no affect on the rate of photosynthesis as the other factors. The aim of this experiment is to investigate into the effects of the change of carbon dioxide concentrations on the rate of photosynthesis. Prediction: My hypothesis is that as the concentration of carbon dioxide increases the rate of photosynthesis will also increase. Graph showing the effects of carbon dioxide on the rate of photosynthesis

Keeping the light intensity the same means it will have no additional effect on the rate of photosynthesis. A change of light intensity would result in a change of photosynthesis rate. Control Room temperature ºC The room temperature will be kept the same for the duration of the investigation of the experiment by ensuring there are no windows. 5. Photosynthesis produces the oxygen (O2) on which all aerobic organisms depend for survival. What other factors make photosynthesis essential to the maintenance of virtually all life on earth? 6. In the experiment that tested the effect of light intensity on the rate of photosynthesis, we did not run a control tube during the experiment In my first bar graph Photosynthesis Lab you can clearly see that the variable had a much faster rate of photosynthesis because of how many more discs had floated to the top. Then in my second graph Photosynthesis Lab (Part 2) the more bicarbonate solution we put, the faster rate of photosynthesis The rate of photosynthesis is affected by light intensity, temperature, carbon dioxide concentrations, and chlorophyll. In this video we explore exactly how,..

### How light intensity effects the rate of photosynthesis

From the gradient of the two lines I shall be able to draw a graph on the rate of photosynthesis. From the graph of Rate of Photosynthesis I have noticed that there has been a decrease in the rate of photosynthesis when the beaker was at 20cm from the beaker, besides that the rate of photosynthesis graph looks corrects. Conclusio The experiment concluded that the rate of photosynthesis, measured using percentage change in dissolved oxygen concentration, increases steadily alongside the increase of CO Photosynthesis Experiment: Hill Reaction Essay Sample. Aim of the Experiment: To analyse the effects of light intensity on photosynthesis via the Hill reaction. Research Question: How does light intensity affect the rate of photosynthesis more precisely the rate of reaction in photosystem II, at the primary acceptor location Discussion: The original hypothesis of this experiment was that as the temperature increases, the rate of photosynthesis will also increase. This is only partly true because as we can see from quantitative data, the increase of temperature does increase the photosynthetic rate but only up to 45 °C. Photosynthesis itself is a chemical reaction

Investigating Photosynthesis using Algal Balls. Overview: This lab is designed as a flipped lesson to provide introductory biology students with a basic understanding of photosynthetic pathways and how environmental factors affect the photosynthetic rate in autotroph living organisms such as plants and algae Factors affecting the rate of photosynthesis 3. Carbon Dioxide. Carbon dioxide is used to make sugar in the photosynthesis reaction. The concentration of carbon dioxide in the Earth's atmosphere varies between 0.03% and 0.04%. An increase in the concentration of carbon dioxide gives an increase in the rate of photosynthesis Q1: Give 3 limiting factors to the rate of photosynthesis. (3 marks) Q2: Discuss how light intensity affects the rate of photosynthesis. (3 marks) Q3: The graph below shows a plant's rate of photosynthesis. Discuss the results shown in the graph. (3 marks) Temperature (OC 3. Count bubbles of oxygen gas given off by elodea to determine the rate of photosynthesis. 4. Change the conditions of photosynthesis by altering light intensity and carbon dioxide amount, and determine the effects on the photosynthesis rate. 5. Prepare a graph of the collected data and analyze it. Materials Needed: (For each group of four.

### Lab Answers: How Does Light Intensity Affect the Rate of

Designing an experiment to test the rate of photosynthesis. Adapted from: John S Olson, Dist. 88 Schools, New Ulm, MN 56073 based on The floating leaf disk assay for Investigating photosynthesis Summary. This activity will allow you to measure the rate at which the photosynthesis process occurs photosynthesis. Photosynthesis is a process where plants take the sun's light energy and change it into . glucose, a kind of sugar. A green chemical in the in plant leaves, called . chlorophyll, makes it all happen and gives plants their green color. When you breathe, your body . uses oxygen (O. 2) and gives off carbon . dioxide (CO 2). Since. This experiment is focusing on the light reactions of photosynthesis, specifically how various temperatures affect the rate of these reactions. The Hill Reaction, performed by Robert Hill in 1937, exhibited that chloroplasts in water can perform photosynthesis under the conditions that they are in the presence of light and an electron acceptor 2. Open the 8 ABI Photosynthesis lab file. Connect the carbon dioxide sensor to your device. NOTE: If the lab file is not available, create a graph of carbon dioxide (ppm) versus time. Adjust the sample rate to 5 seconds. Set an auto-stop condition for 7 minutes. 3. Rest the bottle on its side on a flat surfac

### Leaf Disc Experiment to Investigate Rate of Photosynthesi

Graph Justification: The reason we chose to use a line graph is because we wanted to see the rate of change for the disks of leaves and we wanted to see it at a specific time. Therefore we chose to use a line graph because we can now compare the rate of photosynthesis at a specific time for all of the variables Example results for the floating leaf disk assay. The graph shows the time on the x-axis and the number of floating leaves on the y-axis. The Effective Time (ET 50) represents the time required for 50% of the leaves to float. By extrapolating from the graph, the 50% floating point in this graph is about 11.5 min The problem with ET50 is that it goes down as the rate of photosynthesis goes up--it is an inverse relationship and creates the following type of graph (data from Steucek, et al. 1985.): To correct for this representation of the data and present a graph that shows increasing rates of photosynthesis with a positive slope the ET50 term can be. design an experiment to test the effects of light energy on the rate of photosynthesis. discuss the various factors that effect plant growth. create graphs showing the different rates of photosynthesis for various wavelengths of light. develop a necessary plan of action to effect growth of a food plant or contro Changing the amount of CO2 a plant receives impact the rate of photosynthesis because if there is an increase of the carbon dioxide concentration, then the rate of photosynthesis will go up. Changing the amount of light a plant receives impact the rate of photosynthesis because the brighter the light gets, the rate of photosynthesis increases

### An Analysis and Evaluation of Data from Photosynthesis

The graph produced from this experiment isn't very useful as it will only have 3 points on it making it harder to see a pattern or any type of correlation. However, this is what the table should look like: so does rate of photosynthesis which is because the chlorophyll has more light to absorb for photosynthesis. In the evaluation of. As photosynthesis begins, oxygen is released into the interior of the leaf. This alters the buoyancy again, making the leaf disks float again. Cellular respiration occurs at the same time, which causes it to consume oxygen. This makes the rate of the disk rise an indirect measurement of the net rate of photosynthesis. Materials for the Experiment 15M.2.SL.TZ1.4b (i): Draw a graph to show the effect of increasing light intensity on the rate of photosynthesis. 15M.2.HL.TZ2.7b: Draw an annotated graph of the effects of light intensity on the rate of photosynthesis. 15M.2.SL.TZ1.4b (ii): Explain one way of directly measuring the rate of photosynthesis Lab 5. Temperature and Photosynthesis: How Does Temperature Affect the Rate of Photosynthesis in Plants? Introduction . All the colors that our eyes can see can be found in plants that live in the world. They include deep, bright reds to rich blues and purples. Interestingly, one common color that most plants share is green Q 10 may be calculated from the rise of the rate of photosynthesis at every 10°C rise of temperature from the graph. Inferences: The rate of photosynthesis is retarded — both directly and indirectly — by cold or high temperature, either through the inhibition of enzyme activity or other associated physiological processes. Experiment # 7

### Rate of Photosynthesis (graphs) Diagram Quizle

experiment 3 [250C; 0.04% C02] rate of experiment 2 0.4% C02] photosynthesis experiment 1 [150C; 0.04% C02] light intensity Fig. 2.2 State the limiting factor in region A of the graph Explain why there is no further increase in the rate of photosynthesis beyond point a) Describe what the graph shows about how the rate of photosynthesis changed as light intensity increased. b) Explain what is meant by the saturation point in the graph. c) Based on the graph, the investigator concluded that were limiting factors. List two possible limiting factors in this experiment A graph of the rate of photosynthesis at different concentrations of carbon dioxide has the same shape as that for different light intensities. At low concentrations of carbon dioxide, the supply of carbon dioxide is the rate-limiting factor

### Top 11 Experiments on Photosynthesis in Plant

In this experiment we follow the photosynthesis rate in the aquatic plant Elodea ernstiae using Pressure Sensors to measure the rate of oxygen release. An example of the graph, obtained in. To adjust for this, use the inverse, $\frac {1} {ET_{50}}$, for comparing the rate across conditions. Design an experiment. Using the floating leaf disk assay protocol as a tool to measure the rate of photosynthesis, design an experiment to investigate how varying an environmental or plant condition effects the rate of photosynthesis

2 Graphs 1 - 4 relate to photosynthesis. Three show the absorption spectra of different photosynthetic pigments, with light absorbance on each y axis. One is the action spectrum of a plant containing these three pigments, with the rate of photosynthesis on the y axis. Which letter correctly identifies the four graphs? absorption spectru Experiment on Testing The Rate of Photosynthesis Under Different Exposure of Light and Distance of Light Cikal - Amri Secondary School MYP Year 8 Science Project light affect the rate of photosynthesis in aquatic plant because the plant itself needs more water to grow. Also we want to know if the rate of water could affect th Photosynthesis process requires several factors such as: Light Intensity: Increased light intensity results in a higher rate of photosynthesis. On the other hand, low light intensity results in a lower rate of photosynthesis. The concentration of CO2: Higher concentration of carbon dioxide helps in increasing the rate of photosynthesis. Usually.

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