Movement+in+and+out+of+cells

-Results -Analysis From the results obtained, we can tell that tube A allowed the most amount of light to pass through, followed by D, E, B, and C. This also means that the rate of diffusion of the fluids in the beet root was the highest in C, followed by B, E, D and A. This is relatively close to my prediction made. We can also tell that the darker the colour of the water, the less amount of light is allowed to pass through, and this is because the rate of diffusion of the fluids in the beet root is higher. -Results Time/s |||||| Conductivity || 1 of 8cm^3 agar || 8 of 1cm^3 agar || 64 of 0.125cm^3 agar || 0 || 0.23 || 0.31 || 1.15 || 10 || 0.27 || 0.83 || 5.35 || 20 || 0.50 || 0.88 || 5.22 || 30 || 0.55 || 0.93 || 4.83 || 40 || 0.68 || 1.03 || 2.71 || 50 || 0.70 || 1.12 || 2.27 || 60 || 0.80 || 1.20 || 2.34 || 70 || 0.81 || 1.30 || 2.45 || 80 || 0.83 || 1.47 || 2.62 || 90 || 0.90 || 1.41 || 2.72 || 100 || 0.91 || 1.45 || 2.85 || 110 || 0.92 || 1.51 || 3.03 || 120 || 1.01 || 1.58 || 3.12 || -Analysis From the results obtained, we can tell that the conductivity of the largest block of agar is the lowest after 120 seconds, and highest for the smallest blocks of agar. The conductivity gradually increases for all blocks over time, but the conductivity of the largest block of agar increases at the slowest rate, and the conductivity of the smallest blocks increases at the fastest rate. At 20 to 40 seconds for the smallest blocks of agar, there is a sharp increase. This is due to experimental error, because of the wrong stirring method used by me at first. The higher the conductivity, the higher the rate of diffusion of the agar blocks. We can thus tell that the block with the greatest surface area diffuses at the slowest rate, and the blocks with the least surface area diffuse at the fastest rate. Both experiments are about rates of diffusion – exploration 4A records the end result after 15 minutes, while exploration 4B records the change in results over 2 minutes. The experiments are similar, since they both show diffusion rates of cells. However, 4A is direct in representing this, using beet root, which has cells in it, in the experiment, while 4B is only a model of the real thing, since agar blocks are non-living. The experiments are different in many ways. 4A shows how rates of diffusion differ in different solutions, while 4B shows how surface area of cells affect rates of diffusion. In addition, the ways used to measure the rate of diffusion is different. 4A uses amount of light able to pass through, while 4B uses conductivity. Thus, the relation between the results obtained and rate of diffusion is inversely proportionate for 4A, but directly proportionate for 4B.
 * Exploration 4A**
 * Tube || Amount of light passed through || Colour of water ||
 * A – 4ml of water || 92.9 || Very light pink ||
 * B – 4ml of 25% alcohol || 78.8 || Pink ||
 * C – 4ml of 50% alcohol || 38.6 || Pink, close to red ||
 * D – 4ml of hot water || 91.4 || Light pink, darker than A ||
 * E – 4ml of water, chopped up pieces || 79.5 || About the same as B ||
 * Exploration 4B**
 * Discussion**