Students are performing an experiment to understand the transfers of carbon between a photosynthetic organism, the aquatic plant Elodea, and a water snail. They are using test tubes that contain the same amount of water, partially enriched in CO₂, and the same amount of BTB, to detect the presence of CO₂. The test tubes are placed in natural sunlight for the duration of the experiment, as shown in the image. The contents of each test tube are as follows: Tube 1 Tube 2 Tube 3 Tube 4 Tube Tube 1 Tube 2 Tube 3 Tube 4 Contents Water + BTB Water+ BTB + 1 snail Water+ BTB + 1 Elodea Water+BTB + 1 Elodea + 1 snail What color should the contents of tubes 3 and 4 be at the end of the experiment? What is the reason for the colors that you predicted in Part A for tubes 3 and 4? Explain your response in terms of the processes responsible for the color changes and the organism(s) involved in each case. If tube 4 was placed in the dark for the duration of the experiment, predict the color of the contents of tube 4 at the end of the experiment. Explain your response.
Students are performing an experiment to understand the transfers of carbon between a photosynthetic organism, the aquatic plant Elodea, and a water snail. They are using test tubes that contain the same amount of water, partially enriched in CO₂, and the same amount of BTB, to detect the presence of CO₂. The test tubes are placed in natural sunlight for the duration of the experiment, as shown in the image. The contents of each test tube are as follows: Tube 1 Tube 2 Tube 3 Tube 4 Tube Tube 1 Tube 2 Tube 3 Tube 4 Contents Water + BTB Water+ BTB + 1 snail Water+ BTB + 1 Elodea Water+BTB + 1 Elodea + 1 snail What color should the contents of tubes 3 and 4 be at the end of the experiment? What is the reason for the colors that you predicted in Part A for tubes 3 and 4? Explain your response in terms of the processes responsible for the color changes and the organism(s) involved in each case. If tube 4 was placed in the dark for the duration of the experiment, predict the color of the contents of tube 4 at the end of the experiment. Explain your response.
Chapter9: Parenteral Medication Labels And Dosage Calculation
Section: Chapter Questions
Problem 4.1P
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What color should the contents of tubes 3 and 4 be at the end of the experiment?
What is the reason for the colors that you predicted in Part A for tubes 3 and 4? Explain your response in terms of the processes responsible for the color changes and the organism(s) involved in each case.
If tube 4 was placed in the dark for the duration of the experiment, predict the color of the contents of tube 4 at the end of the experiment. Explain your response.
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