Cards (4)

  • Villi
    Finger-like projections on the inner wall of the small intestine that increase the surface area for absorption
  • Root hair cells
    Increase the surface area of plant roots for absorption
  • Surface area to volume ratio is the reason large organisms are made of many small cells, and why cells are so small
  • Large organisms need exchange surfaces to increase surface area above just having many, tiny cells - makes exchange of substances much more efficient