MCQ
Which of the following is high in smaller cells?
  • A
    Surface area per unit volume.
  • B
    Metabolic activity.
  • C
    Both A and B.
  • D
    None of the above.

Answer

  1. Both A and B.

Explanation:

The surface area of cells determines the exchange of materials. The increase in volume of the cell increases its metabolic activity. However, surface area does not increase correspondingly with the volume. Therefore, larger cells are less efficient. Metabolically active cells are usually small with the higher surface area to volume ratio for the quicker exchange of materials.

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