[Campbell Biology P.148] The text mentions "surface called microvilli, which increase surfac... | Practice Question

The text mentions "surface called microvilli, which increase surface area without an appreciable increase in volume." What is the primary biological advantage of a cell having structures like microvilli?

  • A: To facilitate more efficient exchange of materials with the external environment.
  • B: To provide structural support and rigidity to the cell.
  • C: To enable faster cell movement and locomotion.
  • D: To store excess nutrients for later use.

Explanation

Microvilli significantly increase the surface area of the cell membrane, which is crucial for processes like absorption e.g., in the intestines or secretion, where a larger surface allows for more efficient transport of molecules across the membrane relative to the cell's volume.