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

Cells as the basic units of living organisms — practice question

Four students were set the task of matching each function to the appearance of certain cell structures in an animal cell. The functions were given as numbers: 1 mRNA passes through to the ribosome; 2 synthesis of polypeptides; 3 synthesis of lipids. The appearances were given as letters: V membranes that enclose an inner cavity; W non-membrane bound, spherical structures; X a double membrane containing pores; Y non-membrane bound, cylindrical structures; Z membrane-bound sacs arranged as a flattened stack. Which student made the correct match between the numbered function and the appearance of the cell structure?

  • A1 V; 2 X; 3 Z
  • B1 V; 2 Z; 3 W
  • C1 X; 2 W; 3 V
  • D1 X; 2 Z; 3 V

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