In terms of size, which cell type is expected to carry out respiration more actively?

The smaller cell is expected to carry out respiration more actively due to the relationship between cell size and surface area-to-volume ratio. As a cell becomes smaller, its surface area relative to its volume increases. This is a crucial factor because respiration, which involves the exchange of gases (such as oxygen and carbon dioxide), occurs across the cell membrane.

In smaller cells, the increased surface area enhances the ability to efficiently take in oxygen and expel carbon dioxide. Additionally, a higher surface area-to-volume ratio allows for a more effective transport of nutrients and waste products. Consequently, smaller cells can engage in metabolic processes more actively compared to larger cells, where the decreased ratio can limit the efficiency of these processes. This fundamental principle highlights why smaller cells tend to maintain quicker rates of respiration and other metabolic activities.