A. Discuss the limitations upon cell size imparted by unfavorable changes in the surface area to volume (SA/V) ratioas cells have become larger in evolutionary time.

B. There are two structural adaptations of eukaryotic cells that enable them toattain larger sizes than prokaryotic cells. One of them is compartmentalization. You will be asked to discuss that in Part Cof this question. What is the other structural adaptation and how does it contribute to the resolution of the SA/V problem?

C. How does the presence of a compartmentalized cytoplasm reduce the burden of transport in large cells with unfavorable SA/V ratios?