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6. What are microtubules?

  • rigid intracellular skeleton, tracks membrane proteins
  • rigid intracellular skeleton, tracks motor proteins
  • rigid intercellular skeleton, tracks membrane proteins
  • rigid intercellular skeleton, tracks motor proteins

7. What does taxol do?

  • encourage spindle formation
  • prevent spindle formation
  • activate spindle destruction
  • prevent spindle destruction

8. What are PCM?

  • proteins responsible for chromosome nucleation and anchoring
  • proteins responsible for chromatid nucleation and anchoring
  • proteins responsible for microtubule nucleation and anchoring
  • proteins responsible for mitosis nucleation and anchoring

9. What are dyneins?

  • motor proteins that move toward cell centre
  • motor proteins that move toward minus end (centrosome)
  • motor proteins that move toward plus end (cell edge)
  • motor proteins that move toward nucleus

10. What does colchicine do?

  • binds to tubulin molecules and prevents polymerisation and spindle formation
  • binds to cytoskeleton and prevents polymerisation and spindle formation
  • binds to centrosome molecules and prevents polymerisation and spindle formation
  • binds to membrane and prevents polymerisation and spindle formation

11. What is the cytoskeleton responsible for?

  • communication and transport between different areas
  • support only
  • communication only
  • communication and transport between different organs

12. What is vimentin?

  • most widely distributed cytoplasmic intermediate filament proteins
  • least known actin filament
  • most widely distributed actin filament
  • least known cytoplasmic intermediate filament protein

13. What is the purpose of a centrosome?

  • serves as main meiosis organising centre
  • serves as backup microtubule organising centre
  • serves as main microtubule organising centre
  • serves as main mitosis organising centre