Saturday, January 19, 2019
Photosynthesis Rate
Photosynthesis Lab in the first place you begin, save this Lab Report Template on your computer as LastNameAPBIOPhoto Read all the instructions be funky BEFORE you start 1. occupy go to the following website http//www. biocourse. com/mhhe/bcc/domains/biolabs. xsp 2. Scroll down and chink on the striking to Photosynthesis. It is the 6th one down on the left. 3. Read the instructions for first appearance the virtual lab. There is background information in the online lab manual that will be helpful in interpreting your results. Please canvas the steps in the weightlessness and dark reactions of Photosynthesis BEFORE or temporary hookup you are completing this lab simulation.You may want to have your textual matter open to refer to while you do the lab. You may also take in to use additional sources of information. 4. Remember to cite ALL external sources that you use, employ proper MLA style. 5. YOU DO NOT NEED TO ANSWER THE ONLINE QUESTIONS, but you should find about them as you proceed thorough the lab. Note Lab instruction manual start on the next page Experiment 1 habitat and Photosynthetic pass judgment Predict the relative photosynthetic ordains of plants from a shaded rainforest floor, a coastal region with moderate blithesome, and a bright desertRainforest prognostic ____________________________________________ Coast Prediction ________________________________________________ Desert Prediction _______________________________________________ a. Continue to the simulation hide and confabulate Clear Data and click the Native Habitat bridle b. Select Rainforest floor and hence click Graph Data c. duplicate for Coast and Desert. d. Record your results in the accede 4-1, reading the selective information from the online display e. Graph your data utilize Create-a-Graph (http//nces. ed. gov/nceskids/graphing/) Results Experiment 1Data Table 4. 1 Habitat and Photosynthesis at Different enlighten Intensities send Intensity (foot-candles) Photosynthesis Rate (mg CO2/g fresh leaf) RainforestCoastDesert 0 5 10 15 20 25 30 35 40 45 50 compend Experiment 1 a. How is photosynthetic rate measured? b. relieve why the photosynthetic rate is ban at low levels of light potency. (HINT Is there a net inspiration or release of CO2 at low light loudness? ) c. Which of the 3 types of plants had the highest photosynthetic and which had the lowest? d. Did this observation agree with your predictions? . prefigure factors that efficiency be associated with the differences in photosynthetic rates in the 3 types of plants. f. At what light warmth level did photosynthetic rate level reach? Was this light intensity the same for all plants? g. Explain why the photosynthetic rate levels off. h. Is there a sexual congress surrounded by light intensity and leveling off of photosynthetic rates in the distinguishable plants? i. Explain how plants become acclimated to light levels normally found in their native habitat. proof Experi ment 1 Short, testable bid HINT Rank the plants from high to low photosynthetic rate) Experiment 2 Light Color and Photosynthetic Rates Predict the relation of carbon dioxide level and photosynthesis rates Prediction ____________________________________________ a. dog-iron Clear Data and then the CO2 levels tab b. Select 274 ppm (parts per million) and click Graph Data c. Repeat with 370, 740, and 1000+ ppm CO2 d. Record your results in the Table 4-2, reading the data from the online display e. Graph your data victimization Create-a-Graph (http//nces. ed. gov/nceskids/graphing/)Results Experiment 2 Data Table 4. 2 CO2 Levels and Photosynthesis at Different Light Intensities Light Intensity (foot-candles)Photosynthesis Rate (mg CO2/g fresh leaf) 274 ppm CO2370 ppm CO2740 ppm CO21000+ ppm CO2 0 5 10 15 20 25 30 35 40 45 50 Analysis Experiment 2 a. What is the relation between CO2 levels and photosynthesis rates? b. Indicate where and explain why the photosynthesis rates level off at different levels of light intensity. c. Are CO2 levels a rate-limiting factor? Explain. d. What is a nursery gas? e. What is global warming? f.Suggest a possible relation between plant function, greenhouse gases, and global warming. Conclusion for Experiment 2 Short, testable argument (HINT Indicate the relation of CO2 levels and photosynthesis rate) Experiment 3 Predict the relation of light color and photosynthesis rates Prediction ____________________________________________ a. Continue to the simulation screen and click Clear Data and then the light color tab b. Select white light and click Graph Data c. Repeat with red, blue, green, and yellow light d. Record your results in the Table 4-3, reading the data from the online display e.Graph your data using Create-a-Graph (http//nces. ed. gov/nceskids/graphing/) Results Experiment 3 Data Table 4. 3 Light Color Photosynthesis at Different Light Intensities Light Intensity (foot-candles)Photosynthesis Rate (mg CO2/g fresh leaf) Whi teRedBlueGreenYellow 0 5 10 15 20 25 30 35 40 45 50 Analysis Experiment 3 a. Which light is roughly effective in driving photosynthesis rate? b. At what light intensity does the photosynthesis rate level off for white light? c. Why does the photosynthesis rate level off for white light but not for the singular colors? d.Which colors, other than white, are associated with the highest photosynthesis rate? With the lowest? e. What colors of light do plant leaves absorb during the growing season? f. What colors of light do plant leaves reflect during the growing season? g. How does chlorophyll move with accessory pigments to broaden the spectrum of light for photosynthesis? Conclusion Experiment 3 Short, testable statement (HINT Rank the colors from high to low photosynthetic rate) Reflection educational activity about what you learned from this lab simulation. (NOTE The reflection should be AT pasture
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