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5 Cards in this Set

  • Front
  • Back

Interphase

* Phase with highest metabolism (mitochondria have a high activity)
* Muscles never complete the whole cycle

Prophase

* Chromosomes become shorter and thicker by coiling themselves (condensation)
* This prevents tangling with other chromosomes
* Nuclear envelope disappears/breaks down
* Protein fibres (spindle microtubules) form
* Centrioles are moving toward opposite poles forming the spindle apparatus of microtubule

Metaphase

* Centrioles at opposite poles
* Chromosomes line up on the equator of the spindle
* Centromeres (kinetochores) attach to spindle fibres
* Kinetochores consist of microtubules and "motor" proteins which utilise ATP to pull on the spindle

Anaphase

* Spindle fibres pull copies of chromatids to spindle poles to separate them
* Mitochondria around spindle provide energy for movement

Telophase

* Chromatid at the pole
* Sets of chromosomes form new nuclei
* Chromosomes become long and thin, uncoil!
* Nuclear envelopes form around the nucleus