CO2 is consumed during photosynthesis 2. Demonstrating Aerobic Cellular Respiration with Germinating Seeds. 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. Some Important Background for Lab: Bromothymol Blue Indicator Reaction to Measure CO. 2. Have students observe the respiration of germinating seeds, using bromthymol blue as a pH indicator. PRE-LAB QUESTIONS. blue and CO 2. Exercise and Cellular Respiration Lab ... and carbon dioxide in the time it takes bromothymol blue to change color. of cellular respiration? VIRTUAL LAB Carbon Transfer through Snails and Elodea Bromothymol blue (BTB) is an indicator that turns yellow in the presence of carbon dioxide. he following tests were set up; #1- 50 Ml of distilled water and 3 … LIGHT SETUP Describe the initial color of … The pictures below show the setup for an investigation during which bromthymol blue was added to all the test tubes. The pH indicator bromothymol blue is used to estimate the amount of CO 2 present in the vials. CO2 (needed for photosynthesis) and . Bromothymol blue is a chemical Next, they observe the carbon dioxide gas produced by yeast fermentation. Use your background information AND your Cellular Respiration notes to answer the following 1. How are cellular respiration and photosynthesis alike? How are they different? First, students observe respiration in germinating seeds by detecting the carbon dioxide produced. When CO ... Answer … O2 (released during photosynthesis) in solution. An experiment was designed by Biology student to demonstrate the link between photosynthesis and cellular respiration. Label the … Bromothymol Blue (which acts as an indicator to show if photosynthesis is occurring). What is the equation for cellular respiration? and "7 cm dark". Bromothymol blue works because it is able to detect the presence of . ©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. The bromothymol we used changes color when a … (10 points) In a short paragraph (5–7 sentences), explain the evidence you have to prove that cellular respiration occurred in the beans. In a test tube, you will see that: bromothymol blue + CO2 = green color. Why do we need to breathe (don’t answer: “to live”)? ... Pre-Lab. bromothymol blue + O2 = blue color 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, Cellular respiration occurred in the beans because the bromothymol in the cups changed color from blue to green. The purpose of this lab is to determine the effects of elodea on CO 2 levels and to observe evidence of cellular respiration and photosynthesis. Why is cellular respiration necessary for living organisms? When carbon dioxide enters water it makes the water more acidic. Label four test tubes: "control," "3 cm elodea" and "7 cm elodea." Part 1: Elodea and Bromothymol Blue: 1. To Measure CO. 2 '' `` 3 cm elodea '' and `` 7 cm elodea '' ``! The following 1 an experiment was designed by Biology student to demonstrate link. 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