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

Movement into and out of cells — practice question

Potato pieces of the same size were put into a test-tube and immersed in a sucrose solution. The test tube was left standing for 30 minutes. Every other variable was kept constant. After 30 minutes, the potato piece had remained the same size. What can be concluded from this result?

  • AThe concentration of sucrose is the same in the potato and in the solution and there is no more movement of water into or out of the potato.
  • BThe concentration of sucrose is the same in the potato and in the solution and there is no net movement of water into the potato.
  • CThe water potential is the same in the potato and in the sucrose solution and there is no more movement of water into or out of the potato.
  • DThe water potential is the same in the potato and in the sucrose solution and there is no net movement of water into or out of the potato.

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