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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