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 told to pair each function with the correct appearance of certain cell structures in an animal cell. The functions were numbered as follows: 1 mRNA passes through to the ribosome; 2 produces the mitotic spindle during cell division; 3 packaging of hydrolytic enzymes that will remain in the cell. The appearances were given the letters: V membranes which enclose an internal cavity; W spherical structures with no membrane; X a double membrane with pores between them; Y cylindrical structures with no membrane; 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 W, 3 Y
  • B1 V, 2 Y, 3 Z
  • C1 X, 2 W, 3 Y
  • D1 X, 2 Y, 3 Z

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