Diffusion In Agar Cubes

  1. in terms of maximizing diffusion, what was the most effective size cube of you tested? the most effective size cube is 1 cm cubes of maximizing diffusion.
  2. why was that size most effective at maximizing diffusion? what arex` important factors that affect how materials diffuse into cells or tissues? The 1cm cube was the most effective due to it having a smaller surface area than the other cubes, this makes it easier to cover the entire thing. Important factors that affect diffusion in cells or tissues are temperature, material, size and polarity.
  3. if a large surface area is helpful to cells, why do cells not grow to be very large? Surface area affects the volume and if an object has a high volume it will take a greater amount of time to diffuse even though it may have a lot of surface area. This is why cells do not grow very large.
  4. You have three cubes, A, B, and C. they have surfaced to volume ratios of 3:1, 6:2, and 7:3 respectively. Which of these cubes is going to be the most effective at maximizing diffusion, how do you know this? The 7:3 ratio cube will be the most effective at maximizing diffusion because of the balance of surface area to volume. It will have the most effective diffusion out of the three cubes.
  5. How does your body adapt to surface area-to-volume ratios to help exchange gasses? In our body have adapted in order to use large surface area organs that help exchange gases better
  6. Why can’t certain cells, like bacteria, get to be the size of a small fish? Cells like bacteria cannot get to be the size of a small fish because they need to divide in order to keep a good surface area to volume ratio. Additionally, bacteria depend on their organelles for survival whereas larger, multicellular organisms have specialized cells which they can depend on.

 

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