able 5.3. Class results of diffusion experiments at room tempe 97 Observations o
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Question
able 5.3. Class results of diffusion experiments at room tempe 97 Observations of Classmates Dye Selection Rate of Diffusion 2 3 6 Potassium permanganateO Tabl e 5.4. Class results of diffusion experiments at colder temperatures Observations of Classmates Rate of Dye Selection 6 Diffusion 2 5 Potassium permanganate 0 8.3 Congo red (o | 5 | ( 3 | 5 1 hat process would explain why the dyes spread through the agar? Which of these solutes diffused faster at room temperature? Which of these solutes diffused faster at colder temperature? Which solute has a smaller molecular size, based on the diffusion data? Compare the diffusion rate of a single dye at room temperature versus cold temperature. Was the diffusion rate the same? Explain any differ- ence in diffusion rate you see.Explanation / Answer
The process that explains the movement of dye in agar is DIFFUSION that is the passive movement of molecules or particles along a concentration gradient, or from regions of higher to regions of lower concentration.
Pottasium pemangnate was able to diffuse faster at room temperature based on the rate of difffusion value og 10.2.
Again, at colder temperatures, pottasium permangnate was able to diffuse faster with a value of 8.3.
Since pottasium permangnate was able to diffuse faster compared to congo red, it suggests that pottasium permangnate is having smaller molecular weight.
NO, the rate of diffusion was not the same for both of the dye. Rate of congo red changed from 6.0 to 5.3 when the temperature was colder which suggest that diffusion is a temperature dependent process as well.
Diffusion occurs through pores of specific sizes based on the concentration of agar. Higher concentration of agar means smaller pore size for diffusion. So, it is harder for larger, more voluminous, cells to diffuse through a specific pore size compared to movement of flat, smaller cell, that is moving through the pore of same size.
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