1.1. A student was studying the surface area to volume ratio of three different organisms A, B and C which can be seen in Table 1 below.

Table 1

Using Table 1 above and your own knowledge, suggest which organism would benefit from a transport system. 

Justify your answer.

1.2. The student determined the rate of oxygen uptake for the three organisms as:

Suggest which of the three oxygen uptakes would be for organism C and give a reason why.

1.3. Explain how cellular factors, such as size, shape, and membrane characteristics, influence the rate of diffusion of oxygen across cell membranes.

1.4. Explain the significance of the rate of oxygen diffusion in the respiratory system of an organism.