1. In this graph, 12 cm2 cubes of gelatin are placed in dye solutions. Which cub
ID: 148821 • Letter: 1
Question
1. In this graph, 12 cm2 cubes of gelatin are placed in dye solutions. Which cube shows Figure 1. Diffusion of different concentrations of dye into clear 12 cm2 gelatin cubes 60 a. the fastest rate of diffusion -cube 1 cube 2 -cube 3 40 b. the slowest rate of diffusion 2. In the same graph (figure 1), what is the depth of diffusion after minutes for 10 20 30 40 50 30 Time (min) Cube 1 Figure 2. Marine Fish lose water due to osmosis at different rates. Cube 2 Cube 3 3. How long did it take for the dye to reach 3 a depth of 40 mm in Cube 3? Species A Species B 4. In Figure 2, two marine fish species are1 losing water by osmosis. Which of the two species has the fastest rate of water loss? 2 0 10 Time (min) 20 5, Which fish species shows a total water loss of 1 ml in ten minutes? How about a total loss of 3.5 ml in 15 minutes? 6. How long did it take Species B to lose 2.0 ml of water?Explanation / Answer
1.
(a). The fastest rate of diffusion is in cube 3 as the depth of diffusion per minute in highest in cube 3 as shown in the graph.
(b). The slowest rate of diffusion is in cube 1 as the depth of diffusion per minute in lowest in cube 1 as shown in the graph.
2. Depth of diffusion after 30 minutes for-
cube 1- 7-10 MM (shown in graph)
cube 2- 20 MM (shown in graph)
cube 3- 30-35MM (shown in graph)
3. It will take 38 to 40 minutes as you can see the X and Y axis for cube 3.
4. Species A is losing water with fastest rate as the total water loss per minute is highest as compare to species B , we can see this in the graph.
5. Species B shows a total water loss of 1ml in 10 minutes and species A having a total loss of 3.5 ml in 15 minutes as it is directly given in the graph by seeing X and Y axis.
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