I'm studing Cellular Respiration. We did a lab. We had technical difficulties... our CO2 gas sensor wasn't working properly. So I am curious, what trends SHOULD I have seen. We compared the CO2 output of bean sprouts vs mealworms. We tested at both room temp (27 degrees C) vs cold temp (15 degrees C) for both the mealworms and bean sprouts. I need to know the trends I should have seen, ie. does an animal or plant produces more C02 and why? Also does the the cool temp make the reduction in CO2 production? Thank you.
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- Table 2 This table is for gathering data on the effects of temperature, light, or seed type on respiration. 0 5 10 15 20 25 Total time (min) Respirometer 1 Volume of Water (ml) 0.000ml 0.180ml 0.200ml 0.300ml 0.315ml 0.350ml Respirometer 2 Volume of Water (ml) 0.000ml 0.020ml 0.020ml 0.000ml 0.000ml 0.000ml Respirometer 3 Volume of Water (ml) 0.000ml 0.100ml 0.100ml 0.150ml 0.200ml 0.250ml Respirometer 4 Volume of Water (ml) 0.000ml 0.030ml 0.050ml 0.000ml 0.000ml 0.000ml Graphing Create a graph to compare the rate of respiration of the respirometers 2 and 4 in Table 2 of your investigation. The graph should show the change in the volume versus time. This represents the rate of respiration. Be sure to include a graph title and properly label your x- and y-axes, including units.2. Two test tubes were filled with a solution of bromothymol blue. This solution turns yellow in the presence of carbon dioxide. An aquatic green plant was placed into each tube. A student exhaled through a straw into each tube and the bromothymol blue turned yellow. The tubes were corked and one tube was placed in the dark, the other tube was placed in direct sunlight. The yellow solution in the tube in sunlight turned blue, while the one in the dark remained yellow. Which statement best explains why the solution in the tube placed in sunlight returned to a blue color? A. Oxygen was produced by photosynthesis. Carbon dioxide was removed by photosynthesis. Carbon dioxide was produced by respiration. В. C. D. Oxygen was removed by respiration(A) if both sentences are true, (B) if both sentences are false, (C) if the first sentence is true but the second is false, and (D) if the first sentence is false but the second is true. 1.Insufficient dissolved oxygen is necessary for the life of fish and other aquatic organisms. As aquatic photosynthesis is light dependent, the dissolved oxygen produced will peak during daylight hours and decline at night. 2. The potability or “drinkability” of tap water varies from place to place. The distillation process ensures that contaminants are left in the boiling vessel, which results in a cleaner and more pure water in the collection vessel. 3. The stable form of oxygen in the Winkler Titration Method in determining the dissolved oxygen in water was magnesium dioxide. The free iodine in the Winkler Titration Method turned the solution into a red color. 4. Tap water is more pure than distilled water. The purity and cleanliness of distilled water remains constant no matter where you get it…
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