Why are cells generally so small? Select all of the answers that apply.
A. As they grow, their volume increases faster than their surface area.
B. As they grow, their surface area increases faster than their volume.
C. Moving nutrients across their cell membranes is more efficient.
D. Moving waste materials across their cell membranes is more efficient.

Usually as cells, and even organisms get larger, their surface area to volume ratio decreases. This is why it is important for cells to retain their relatively small size to keep a larger surface area to volume ratio.

Explanation:

A larger Surface area to volume ratio ensures that the cell can efecitnyl take up nutrients and excrete toxic metabolites. This ensures that the biochemical activities in the ell continue effectively to support the life process.

If cells were too large, it would take time for important substances like nutrients and oxygen to reach the center of the cell. On the other hand, toxic metabolites would accumulate in the cells because the rate at which they are eliminated is very low.

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