1. 1 the simplest cellshape is coccoid
  2. 2 cytoskeletons enable other shapesthat make it possible for cells...
  3. 3 ...to grow bigger without loweringtheir surface-area-to-volume ratio
  4. 4 ...or to swim or burrow more efficiently
  5. 5 ...or to absorb more nutrients
  6. 6 ...or to soak up more sun

Summary

Concept Check Questions

• What shape maximizes volume relative to surface area?

• What is a cytoskeletal element?

• How could a cytoskeletal element grow a rod shape from a coccoid?

• How could a cytoskeletal element grow a vibrioid shape from a rod?

Further Reading

• Barry and Gitai (2011). Self-assembling enzymes and the origins of the cytoskeleton [33].

• Pfeifer (2012). Distribution, formation and regulation of gas vesicles [34].

• Pilhofer and Jensen (2013). The bacterial cytoskeleton: More than twisted filaments [35].

• Young (2006). The selective value of bacterial shape [30].