Cells are typically small because as they grow,
- A
Membranes thicken and progressively block the diffusion of nutrients inward across the surface
- B
Surface area increases faster than volume, overwhelming transport
- Ccheck_circle
Volume increases faster than surface area, limiting exchange across membranes
- D
DNA replication slows down dramatically as cytoplasmic volume expands inside the cell
Explanation
Volume scales with r³ but surface area with r². Larger cells can't move enough material across their membranes per unit volume.