- In terms of maximizing diffusion, what was the most effective size cube that you tested?
The most effective size that we tested is the smallest cube, which is the 1 cm3 cube.
- Why was that size most effective at maximizing diffusion? What are the important factors that affect how materials diffuse into cells or tissues?
The smallest size was most effective at maximizing diffusion because the surface are to volume ration is the biggest, the NaOH could cover more percentage of the agar cube’s surface area that make the diffusion the most effective.
- If a large surface area is helpful to cells, why do cells not grow to be very large?
When there is a large surface area, the volume of the cell always become big. And it would take a longer time to diffusion that means the cell need long time to grow very big.
- You have three cubes, A, B, and C. They have surface to volume ratios of 3:1, 5:2, and 4:1 respectively. Which of these cubes is going to be the most effective at maximizing diffusion, how do you know this?
The cube C is the most effective at maximizing diffusion because the surface to volume rations id the biggest.
- How does your body adapt surface area-to-volume ratios to help exchange gases?
Our body has a large ratios of surface area to volume, which make the rate of gases exchanging big.
- 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.
- What are the advantages of large organisms being multicellular?
When the large organisms being multicellular which means the cells become small and the surface area to volume rations become bigger, and it could help the diffusion become better.
agar in NaOH after 10 minutes
cut them in half to see how the diffusion goes