Biology 9700 · AS & A Level · Cells as the basic units of living organisms

Cells as the basic units of living organisms — practice question

The diagram shows a sketch based on an electron micrograph of a typical animal cell. What is the function of the membrane system labelled X?

  • Alipid synthesis only
  • Bprotein synthesis and transport
  • Cprotein synthesis only
  • Dprotein transport only

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