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Name __________________________________________________ Date ___________________ Class ____________LT 2.2 Photosynthesis Virtual Labs What affects Photosynthesis???Tutorial: and listen to the tutorial found in the link above. Fill in the following answers as you watch. Stop and replay anything you don’t understand – this is a complicated topic!Photosynthesis Reaction:_________________________________________________________________________Plants use photosynthesis to make __________________ for the plant. What do plants need in order to perform the light and dark reactions of photosynthesis? How is the plant able to obtain each “ingredient?” Identify the plant cell organelle in which photosynthesis takes place. ________________________ Summarize the 2 step process of photosynthesis. (you may need your notes for this)Light Reaction:_____________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ Dark Reactions________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ What happens to the oxygen that is produced as a result of photosynthesis? _______________________________________________________________________________________________________________Name at least 2 reasons why is photosynthesis also important for people and animals? ___________________________________________________________________________________________ ___________________________________________________________________________________________ Virtual Lab #1 ‐ of Oxygen are given off by the plant through photosynthesis. By measuring the rate at which the bubbles are produced it is possible to tell how fast the plant is photosynthesizing. Read and follow the directions on how to use this lab simulator. Press start and record the bubbles per minute for each of the following light distances. Graph your data and don’t forget your TAILS!304228555118000Light Distance (cm)Bubbles per minute1001201501802008. Based on your data, write a conclusion regarding how light intensity affects the rate of photosynthesis.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Virtual Lab #2 ‐ this lab, you will be experimenting with how different variables affect the rate of photosynthesis.Set the thermometer to 25°C (Room Temperature) and the light intensity to 20. What were the bubbles per minute at this setting? ______ bpm Now increase the CO2 available to the elodea. What were your bubbles per minute? ______ bpm Based on your data, how does the amount of available CO2 affect the rate of photosynthesis? ___________________________________________________________________________________________ ______________________________________________________________________________________________________________________________________________________________________________________Keep your settings from #9 b (25°C, light intensity of 20, increase CO2). What were the bubbles per minute at this setting? ______ bpm Now increase the temperature to 40°C. What were your bubbles per minute? ______ bpm Based on your data, how does an increase in temperature affect the rate of photosynthesis? ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ Return to your settings from #9 b (25°C, light intensity of 20, increased CO2). What were the bubbles per minute at this setting? ______ bpm Now decrease the temperature to 10°C. What were your bubbles per minute? ______ bpm Based on your data, how does a decrease in temperature affect the rate of photosynthesis? ___________________________________________________________________________________________ _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Alter the variables in order to determine which combination leads to the highest rate of photosynthesis. Which combination of settings produced the highest number of bubbles per minute? Temperature: ________ Light: ________ CO2: ________ What combination creates the highest rate of photosynthesis?Student’s Claim(answer to question being asked)Student’s Evidence(Data to support claim)Students Reasoning(Scientific Explanation to support claim and evidence) ................
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