What is the purpose of the cell cycle?

The cell cycle allows for growth and repair of tissues in the body.

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What are the three main phases of the cell cycle?

  1. Interphase
  2. Mitosis
  3. Cytokinesis 

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Describe the processes that take place during interphase.

During interphase, cells grow, synthesise proteins to replicate organelles, and replicate DNA.

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Which phase of the cell cycle takes the longest? 

Interphase takes the longest as the cells prepare for division.

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What happens in mitosis of the cell cycle?

In mitosis, the cell's nucleus divides in two. 

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What happens in cytokinesis?

In cytokinesis, the whole cell or cytoplasm divides in two. 

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Name the three phases of interphase. 

  1. G1 phase
  2. S phase
  3. G2 phase 

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Describe what happens during the G1 phase of the cell cycle.

During G1, the cell grows and makes new proteins to replicate organelles. 

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Describe what happens during the S phase of the cell cycle.

During the S phase, the DNA is replicated.

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Describe what happens during the G2 phase of the cell cycle.

During G2, the cell continues to grow and replicated DNA is checked for errors.

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What happens during the G1 checkpoint of the cell cycle?

The G1 checkpoint checks that the cell has the chemicals needed for replication and also checks for any damage to the DNA.

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What happens during the G2 checkpoint of the cell cycle?

The G2 checkpoint checks that DNA has been replicated without any errors.

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