Fill in the table below with the results from your first experiment. The FLDA actually measures the rate of photosynthetic oxygen production minus the rate of respiratory oxygen use during the same period. In this virtual photosynthesis lab, students can manipulate the light intensity, light color, and distance from the light source. Photosynthesis SHORT ANSWER Experiment 1: Measuring the Rate of Photosynthesis Lab Results 1. Calculate the change in volume by subtracting the later gas volume from the earlier gas volume. ... Like all enzyme-driven reactions the rate of photosynthesis can be measured by either. Answer the lab question – What factors affect the rate of photosynthesis in plants? “The data show …” a. They compare the rate of net photosynthesis in water vs. a … elodea 2. Floating C3 Spinach Discs Lab Concerning Photosynthesis that Determined how Light Intensity Affects the Net Rate of Photosynthesis By Senegar & Mitchell and written by Sandra Monreal Abstract Researchers realize that spinach discs float normally so when infiltrating these discs One problem in measuring a rate of photosynthesis is that there is a competing process occurring at the same time, cellular respiration, a process that uses oxygen. the rate of photosynthesis minus the rate of cellular respiration). 5. Post-Lab Questions. A plant is shown in a beaker and test tube which bubbles to indicate the rate of photosynthesis. “The hypothesis was…” a. El Odea Branch 2. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Question: Photosynthesis SHORT ANSWER Experiment 1: Measuring The Rate Of Photosynthesis Lab Results 1. Include a brief statement describing why you selected the graphing method you did. Steucek, Guy L. Robert J. Hill and Class/Summer 1982. Can you think of a way to how you might measure the gross rate of photosynthesis with this technique? The What was the name of the plant you used to study photosynthesis? In Volume For 5 Minutes Is 0.4 ML For Example, If The Volume At 5 Minutes Is 4 ML. What Was The Name Of The Plant You Used To Study Photosynthesis? Experiment 1: Measuring the Rate of Photosynthesis For the first experiment, what was the change in volume from 00:01:30 to 00:02:00? Be sure to clearly indicate the x and y axes, the units used, and the graph title(s). ... What is an indirect measurement of the net rate of photosynthesis occurring in the leaf tissue? Purpose: The purpose of this investigation is to measure the rate of photosynthesis in spinach leaves by measuring the length of time it takes for leaf discs to generate enough oxygen to float. 1985. 3. Measuring the Rate of Photosynthesis; In this section, students learn how to use the floating leaf disk method to measure the rate of net photosynthesis (i.e. Compare experimental results to control groups! Present your results in a graph. Calculate the change in volume for each measurement time. b. Since cellular respiration is taking place at the same time, consuming oxygen, the rate that the disks rise is an indirect measurement of the net rate of photosynthesis. Experiment 3: Measuring the Rate of Photosynthesis with Floating Leaf Discs. Photosynthesis I: An Assay Utilizing Leaf Disks. Start studying Photosynthesis lab. 4. Write a detailed conclusion based on your results. Print and Web Resources: ! Materials: Sodium bicarbonate (Baking soda) Background Information: Chloroplasts are located in the cells in the center of a leaf, called the mesophyll, or “middle tissue”. Did the rate of photosynthesis increase or decrease due to the independent variable? 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