and "7 cm dark". The pH indicator bromothymol blue is used to estimate the amount of CO 2 present in the vials. The pictures below show the setup for an investigation during which bromthymol blue was added to all the test tubes. he following tests were set up; #1- 50 Ml of distilled water and 3 … How are cellular respiration and photosynthesis alike? of cellular respiration? bromothymol blue + O2 = blue color (10 points) In a short paragraph (5–7 sentences), explain the evidence you have to prove that cellular respiration occurred in the beans. Bromothymol Blue (which acts as an indicator to show if photosynthesis is occurring). How are they different? Demonstrating Aerobic Cellular Respiration with Germinating Seeds. blue and CO 2. LIGHT SETUP Describe the initial color of … Have students observe the respiration of germinating seeds, using bromthymol blue as a pH indicator. CO2 is consumed during photosynthesis 2. Bromothymol blue works because it is able to detect the presence of . Experimental Project: Cellular Respiration Purpose Background Information Independant: resting vs. jumping jacks Dependant: heart rate (pulse), breathing rate, and time for bromothymol blue solution to change colour Control: same amount of BTB solution, students of same age, ©2008 CIBT Photosynthesis and Respiration in Elodea – Teacher Section Page 2 Teacher Information Objectives: Through the investigation of the involvement of CO2 in the processes of photosynthesis and respiration in an aquatic plant, this lab is designed to demonstrate the following: 1. Some Important Background for Lab: Bromothymol Blue Indicator Reaction to Measure CO. 2. CO2 (needed for photosynthesis) and . ... Pre-Lab. Why do we need to breathe (don’t answer: “to live”)? PRE-LAB QUESTIONS. First, students observe respiration in germinating seeds by detecting the carbon dioxide produced. Bromothymol blue is a chemical O2 (released during photosynthesis) in solution. Exercise and Cellular Respiration Lab ... and carbon dioxide in the time it takes bromothymol blue to change color. Next, they observe the carbon dioxide gas produced by yeast fermentation. Cellular respiration occurred in the beans because the bromothymol in the cups changed color from blue to green. When CO ... Answer … Part 1: Elodea and Bromothymol Blue: 1. Label the … Why is cellular respiration necessary for living organisms? An experiment was designed by Biology student to demonstrate the link between photosynthesis and cellular respiration. In a test tube, you will see that: bromothymol blue + CO2 = green color. The bromothymol we used changes color when a … When carbon dioxide enters water it makes the water more acidic. Bromothymol Blue (and indicator that changes from blue to yellow in the presence of carbonic acid) was used, Carbonic acid will be formed when high levels of Carbon Dioxide combine with water. What is the equation for cellular respiration? 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