What was the name of the plant you used to study photosynthesis? 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. Fill In The Table Below With The Results From Your First Experiment. ... Like all enzyme-driven reactions the rate of photosynthesis can be measured by either. Lab 8: Determining the Rate of Photosynthesis in a Leaf. 5. ... What is an indirect measurement of the net rate of photosynthesis occurring in the leaf tissue? Include a brief statement describing why you selected the graphing method you did. Materials: Sodium bicarbonate (Baking soda) elodea 2. “The data show …” a. 3. El Odea Branch 2. Did the rate of photosynthesis increase or decrease due to the independent variable? Question: Photosynthesis SHORT ANSWER Experiment 1: Measuring The Rate Of Photosynthesis Lab Results 1. Photosynthesis I: An Assay Utilizing Leaf Disks. Fill in the table below with the results from your first experiment. Steucek, Guy L. Robert J. Hill and Class/Summer 1982. What Was The Name Of The Plant You Used To Study Photosynthesis? 4. Be sure to clearly indicate the x and y axes, the units used, and the graph title(s). Start studying Photosynthesis lab. 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 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? As photosynthesis proceeds oxygen is released into the interior of the leaf which changes the buoyancy--causing the disks to rise. The rate that the disks sink is an indirect measure of the rate of cellular respiration. 1985. Photosynthesis SHORT ANSWER Experiment 1: Measuring the Rate of Photosynthesis Lab Results 1. Write a detailed conclusion based on your results. The A plant is shown in a beaker and test tube which bubbles to indicate the rate of photosynthesis. 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. “The hypothesis was…” a. Students can measure the rate over time. Print and Web Resources: ! Learn vocabulary, terms, and more with flashcards, games, and other study tools. They compare the rate of net photosynthesis in water vs. a … the rate of photosynthesis minus the rate of cellular respiration). Present your results in a graph. 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. 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