Biology 9700 · AS & A Level · Movement into and out of cells

Movement into and out of cells — practice question

Which description of the movement of substances as tissue fluid forms is correct?

  • ALow hydrostatic pressure forces substances out of the capillary at the arterial end allowing small substances to enter the fluid that bathes the cells.
  • BTissue fluid moves back into the venule due to a net hydrostatic pressure change in the capillary.
  • CMovement of water in tissue fluid into the capillary by osmosis is due to the low water potential and low hydrostatic pressure inside the capillary.
  • DA high water potential of the surrounding tissue fluid causes substances to leave the capillaries at the arterial end.

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