Photosynthesis Rate

Photosynthesis Lab Before you begin, save this Lab Report scout on your computer as LastNameAPBIOPhoto Read all in all the instructions at a depressioner place BEFORE you start 1. Please go to the following website http//www. biocourse. com/mhhe/bcc/domains/biolabs. xsp 2. Scroll flock and gaol on the link to Photosynthesis. It is the 6th one down on the left. 3. Read the instructions for entering the virtual lab. There is background randomness in the online lab manual that will be helpful in interpreting your results. Please review the steps in the lively and blackened reactions of Photosynthesis BEFORE or WHILE you are completing this lab simulation.You whitethorn want to have your textbook open to refer to while you do the lab. You may also need to use additional sources of information. 4. Remember to adduce ALL external sources that you use, using proper MLA style. 5. YOU DO NOT strike TO ANSWER THE ONLINE QUESTIONS, but you should think about them as you proceed doub le-dyed(a) the lab. Note Lab Instructions start on the next scallywag look into 1 home ground and Photosynthetic Rates Predict the relative photosynthetic lay of plants from a shaded rainforest floor, a coastal neck of the woods with mode reckon light, and a sunny desertRainforest prophecy ____________________________________________ glide Prediction ________________________________________________ Desert Prediction _______________________________________________ a. Continue to the simulation screen and tittle-tattle Clear Data and click the Native Habitat tab b. make Rainforest floor and therefore click Graph Data c. double for Coast and Desert. d. Record your results in the hedge 4-1, reading the data from the online expose e. Graph your data using Create-a-Graph (http//nces. ed. gov/nceskids/graphing/) Results test 1Data Table 4. 1 Habitat and Photosynthesis at Different free Intensities Light enduringness (foot-candles)Photosynthesis Rate (mg carbon dioxide/g f resh leaf) RainforestCoastDesert 0 5 10 15 20 25 30 35 40 45 50 psychoanalysis experiment 1 a. How is photosynthetic rate measured? b. Explain why the photosynthetic rate is negative at low aims of light intensity. ( bakshish Is in that location a net uptake or release of carbon dioxide at low light intensity? ) c. Which of the 3 types of plants had the highest photosynthetic and which had the lowest? d. Did this poster agree with your predictions? . Indicate factors that might be associated with the differences in photosynthetic range in the 3 types of plants. f. At what light intensity take aim did photosynthetic rate level off? Was this light intensity the same for all plants? g. Explain why the photosynthetic rate levels off. h. Is there a affinity amid light intensity and leveling off of photosynthetic rates in the different plants? i. Explain how plants become acclimated to light levels normally constitute in their native habitat. finis Experiment 1 Short, testable statement 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. Click 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 railway yard+ ppm CO2 d. Record your results in the Table 4-2, reading the data from the online boast e. Graph your data using 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 l ight intensity. c. Are CO2 levels a rate-limiting factor? Explain. d. What is a greenhouse gas? e. What is global warming? f.Suggest a possible relation between plant function, greenhouse gases, and global warming. coating for Experiment 2 Short, testable statement (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) WhiteRedBlueGreenYellow 0 5 10 15 20 25 30 35 40 45 50 Analysis Experiment 3 a. Which light is most 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 individual 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 increment season? f. What colors of light do plant leaves reflect during the growing season? g. How does chlorophyll interact 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 Statement about what you learned from this lab simulation. (NOTE The aspect should be AT LEA