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

Cells as the basic units of living organisms — practice question

Centrioles, cilia, microtubules and microvilli are all structures present in eukaryotic cells. Which statement about these cell structures is correct?

  • ACentrioles, cilia and microvilli are composed of microtubules.
  • BCentrioles play a role in mitosis and semi-conservative DNA replication.
  • CCilia and microvilli both increase the cell surface area for absorption.
  • DMicrotubules are made of protein and form the spindle in mitosis.

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