Question

which of the following limit cell size? select all of the answers that apply.
a. ratio of surface area to volume
b. rate of moving materials across the cells membrane
c. efficiency of using the information in a cells dna
d. efficiency of dna replication and cell division

Explanation:

• Cell size is limited primarily by the surface area to volume ratio: as cells grow larger, their volume increases faster than surface area, which restricts the rate of nutrient/waste exchange across the membrane.
• Additionally, the cell's DNA has a limited capacity to support the metabolic needs of a larger cell (DNA "load"), so the efficiency of using DNA information limits size.
• DNA replication and cell division efficiency relate to cell cycle timing, not size limits, and membrane transport rate is a consequence of the surface area to volume ratio, not an independent limiting factor.

Answer:

A. ratio of surface area to volume
C. efficiency of using the information in a cell's DNA