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 asked to pair each function with the correct appearance of certain cell structures in an animal cell. The functions were given as numbers: 1 organises microtubules to form the spindle during cell division; 2 synthesis of polypeptides; 3 synthesis of lipids. The appearances were given as letters: V membranes enclosing an inner cavity; W non-membrane bound, spherical structures; X a double membrane with pores; Y non-membrane bound, cylindrical structures; Z membrane-bound sacs arranged as a flattened stack. Which student made the correct pairing between the numbered functions and the appearance of the cell structure?

  • A1 W, 2 X, 3 Z
  • B1 W, 2 Z, 3 V
  • C1 Y, 2 W, 3 V
  • D1 Y, 2 Z, 3 W

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