Plant's Raw Materials - PS Data Points PDF

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plant biology photosynthesis science experiments biology education

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This document contains a lab experiment about photosynthesis, including questions requiring students to record and analyze data about the effects of water, light, CO2 on the rate of photosynthesis. It is aimed at a secondary school level learner.

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Name: _______________________________________________________ Period: ________ A Plant’s Raw Materials Experiment: A plant was placed in an apparatus in which the amount of water, the amount of light, and the amount of carbon dioxide can be ch...

Name: _______________________________________________________ Period: ________ A Plant’s Raw Materials Experiment: A plant was placed in an apparatus in which the amount of water, the amount of light, and the amount of carbon dioxide can be changed to see how many oxygen bubbles are produced. Three different experiments were conducted, changing one of these factors (water, light, carbon dioxide) each time. 1. What is the relationship between water, light, and CO2 and photosynthesis? ___________________________________________________________________________________________ ___________________________________________________________________________________________ 2. What is the relationship between oxygen and photosynthesis? ___________________________________________________________________________________________ ___________________________________________________________________________________________ 3. What would a low number of oxygen bubbles indicate about photosynthesis? ___________________________________________________________________________________________ ___________________________________________________________________________________________ 4. Plot the data on the graph you have been assigned. ALL GRAPHS NEED TO BE DONE AND APPROVED BEFORE MOVING ON TO GROUP CONCLUSION QUESTIONS. Group Conclusion Questions: 1. Fill out the data table below with the range of each factor that will produce the optimal number of oxygen bubbles. Factor Range to produce optimal number of bubbles Water Light CO2 Temperature 2. What trend do you see in the ranges to produce optimal number of bubbles for all 4 factors? ___________________________________________________________________________________________ ___________________________________________________________________________________________ STOP: Get initials from teacher _______________________ and move on to Data Set 3. 3. Using Data Set 3, fill out the data table below with the range of each factor that will produce the optimal amount of sugar. Factor Range to produce the optimal amount of sugar Water Light CO2 Temperature 4. What trend do you see in the ranges to produce optimal amount of sugar for all 4 factors? ___________________________________________________________________________________________ ___________________________________________________________________________________________ 5. Comparing your answers from #2 and #4, is oxygen a reliable predictor of photosynthetic activity? Use data to support your answer. ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ 6. Based on the data your group looked at, explain the reactants and products of photosynthesis. ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ 7. If a plant can use light energy to make materials, why does it need sugar? ___________________________________________________________________________________________ ___________________________________________________________________________________________ 8. Think back to the elephant and lion digestion lab. How will the plant transform this sugar into a needed substance such as protein? ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ Extension Experiment and Questions Name: ____________________ Tommy’s Tomatoes White light is composed of other colors/wavelengths of light. These wavelengths have different amounts of energy. A question that if often posed asks which wavelengths of light would make plants grow best. You set up the following experiment: 6 tomato plants of the same variety potted in the same kind of soil. Each plant received the same amount of water and fertilizer for 3 months. Five of the plants received light of only a certain color. One plant received natural daylight. The amount of time each plant was exposed to light was the same. Measurements of the height of each plant at the beginning of the experiment and at the end of 100 days is found below. Plant Height (cm) over 100 days Overall Growth Plant Color of Light Day 0 Day 25 Day 50 Day 75 Day 100 (cm) Plant 1 daylight 10 14 19 22 29 Plant 2 red 11 18 26 31 36 Plant 3 blue 9 16 23 30 38 Plant 4 yellow 12 14 17 19 22 Plant 5 orange 10 13 17 20 24 Plant 6 violet 11 17 23 29 35 1. Graph the OVERALL GROWTH only for each color of light. 2. Based on the overall growth, under which color of light did the plant grow the most? Give data to support your answer. ___________________________________________________________________________________________ ___________________________________________________________________________________________ 3. If you were to redo the original experiment, what would you change in the experiment to increase the outputs of photosynthesis? Explain. ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ A Plant’s Raw Materials Name: ___________________________ Graph the data provided to determine the response to the variable. Label the both the X and Y axis. Number of Oxygen bubbles vs. Amount of Water Conclusion Questions: 1. What trend is seen between 0-10mL? Use data to support your answer. ________________________________ ___________________________________________________________________________________________ 2. If the experiment continued from 11-15mL with increasing amounts of water, predict what would happen to the number of oxygen bubbles. _____________________________________________________________________ ___________________________________________________________________________________________ Get Data Table 2. Add this data to your graph using a different color. 3. What trend is seen between 11-15mL? Use data to support your answer. _______________________________ ___________________________________________________________________________________________ 4. If the experiment continued from 16-20mL of water, predict what would happen to the number of oxygen bubbles. ____________________________________________________________________________________ ___________________________________________________________________________________________ 5. Predict the number of oxygen bubbles if the amount of water is a. 18 mL (plot this on your graph) ___________________. Explain. ________________________________ _____________________________________________________________________________________ b. 20 mL (plot this on your graph) ___________________. Explain. _________________________________ _____________________________________________________________________________________ A Plant’s Raw Materials Name: ___________________________ Graph the data provided to determine the response to the variable. Label the both the X and Y axis. Number of Oxygen bubbles vs. Amount of Light Conclusion Questions: 1. What trend is seen between 0-10 watts? Use data to support your answer. ______________________________ _____________________________________________________________________________________ 2. If the experiment continued from 11-15 watts with increasing amounts of light, predict what would happen to the number of oxygen bubbles. __________________________________________________________________ ___________________________________________________________________________________________ Get Data Table 2. Add this data to your graph using a different color. 3. What trend is seen between 11-15 watts? Use data to support your answer. _____________________________ ___________________________________________________________________________________________ 4. If the experiment continued from 16-20 watts with increasing amounts of light, predict what would happen to the number of oxygen bubbles. __________________________________________________________________ ___________________________________________________________________________________________ 5. Predict the number of oxygen bubbles if the amount of light is a. 17 watts (plot this on your graph) ___________________. Explain. ______________________________ _____________________________________________________________________________________ b. 19 watts (plot this on your graph) ___________________. Explain. ______________________________ _____________________________________________________________________________________ A Plant’s Raw Materials Name: ___________________________ Graph the data provided to determine the response to the variable. Label the both the X and Y axis. Number of Oxygen bubbles vs. Amount of CO2 Conclusion Questions: 1. What trend is seen between 0-10 ppm? Use data to support your answer. ______________________________ ___________________________________________________________________________________________ 2. If the experiment continued from 11-15 ppm with increasing amounts of CO2, predict what would happen to the number of oxygen bubbles. _________________________________________________________ ___________________________________________________________________________________________ Get Data Table 2. Add this data to your graph using a different color. 3. What trend is seen between 11-15 ppm? Use data to support your answer. _____________________________ ___________________________________________________________________________________________ 4. If the experiment continued from 16-20 ppm with increasing amounts of CO2, predict what would happen to the number of oxygen bubbles. _________________________________________________________ ___________________________________________________________________________________________ 5. Predict the number of oxygen bubbles if the amount of CO2 is a. 17 ppm (plot this on your graph) ___________________. Explain. _______________________________ _____________________________________________________________________________________ b. 20 ppm (plot this on your graph) ___________________. Explain. _______________________________ _____________________________________________________________________________________ A Plant’s Raw Materials Name: ___________________________ Graph the data provided to determine the response to the variable. Label the both the X and Y axis. Though it shows the highest temperature to be 20°C, note that your scale for your X-axis goes up to 40°C to be used later. Scale your Y- axis to 40 bubbles of oxygen. Number of Oxygen bubbles vs. Temperature Conclusion Questions: 1. What trend is seen between 0-20°C? Use data to support your answer. _________________________________ ___________________________________________________________________________________________ 2. If the experiment continued from 22-30°C with increasing temperature, predict what would happen to the number of oxygen bubbles. __________________________________________________________________ ___________________________________________________________________________________________ Get Data Table 2. Add this data to your graph using a different color. 3. What trend is seen between 22-30°C? Use data to support your answer. ________________________________ ___________________________________________________________________________________________ 4. If the experiment continued from 32-40°C, predict what would happen to the number of oxygen bubbles. ____________________________________________________________________________________ ___________________________________________________________________________________________ 5. Predict the number of oxygen bubbles if the temperature is a. 38°C (plot this on your graph) ___________________. Explain. _________________________________ _____________________________________________________________________________________ b. 40°C (plot this on your graph) ___________________. Explain. __________________________________ _____________________________________________________________________________________ Data Table 2 Amt of # of O2 Amt of # of O2 Amt of # of O2 Temp # of O2 water bubbles light bubbles CO2 bubbles (°C) bubbles (mL) (watt) (ppm) 11 12 11 15 11 17 22 35 12 12 12 16 12 16 24 36 13 13 13 16 13 17 26 37 14 12 14 16 14 16 28 37 15 12 15 16 15 17 30 37 Data Set 3 Revising your Model Name: ___________________________ Revise the model below to represent the process of photosynthesis, making sure to include the absorption of light energy and its conversion into chemical energy, as well as the roles of CO2 and H2O in the creation of glucose and released O2.

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