Alaska Science Grade 10 Practice Questions - Alaska Science Assessment, Grade 10 Exam

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A table shows relative surface-area-to-volume ratios for cube-shaped model cells of different side lengths. | Side length (cm) | Surface area (cm²) | Volume (cm³) | SA:V | | 1 | 6 | 1 | 6.0 | | 2 | 24 | 8 | 3.0 | | 3 | 54 | 27 | 2.0 | Based on the data, why do cells tend to remain small?

As size increases, SA:V increases, so large cells exchange materials too quickly Volume decreases faster than surface area, so large cells cannot store nutrients As size increases, SA:V decreases, limiting efficient exchange of materials Surface area stays constant while volume increases, so large cells never grow

Correct Answer:

As size increases, SA:V decreases, limiting efficient exchange of materials

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