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Discussion

The cisternal maturation model of Golgi function proposes that

  • A.vesicles carry cargo between static cisternae
  • B.the Golgi rebuilds itself at every division
  • C.cargo diffuses freely through the whole stack
  • D.cisternae themselves move from cis to trans

Answer: D

On this view a cisterna forms at the cis face, matures as its enzymes are exchanged by retrograde vesicles, and is consumed at the trans face. The competing model holds the cisternae fixed and moves the cargo between them.

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