Cell Cycle Key Terms

  • Created by: Molly
  • Created on: 24-04-13 11:10
What are the three stages of the cell cycle?
Interphase, Nucleur Division, Cell division
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What are the three phases of interphase?
First growth phase - When the proteins from which cell organelles are synthesised are produced. Synthesis phase, when DNA is replicated. Second Growth Stage (G2) when organelles grow and divide and energy stores are increased.
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What happens in nucleur division?
The nucleus divides either by mitosis or meiosis.
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What happens in cell division?
The entire cell divides either by 2 - mitosis or by 4 - meiosis.
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The length of a complete cell cycle varies greatly. A mammalian cell takes about 24 hours. How much of this cell cycle is interphase?
Approx 90%
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What is cancer?
a group of diseases
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What causes cancer?
Damage to genes that regulate mitosis and the cell cycle, which leads to uncontrolled growth of cells and abnormal cells, forming a tumour.
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Where are cancers most commonly found?
Breast, lungs, prostate gland, ovaries.
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How do drugs used to treat cancer disrupt the cell cycle?
they prevent the DNA from replicating in interphase and inhibit the metaphase stage by interfering with the spindle formation.
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What is an issue with the treatment of cancer?
It damages the production in the cell cycle of normal cells.
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Card 2

Front

What are the three phases of interphase?

Back

First growth phase - When the proteins from which cell organelles are synthesised are produced. Synthesis phase, when DNA is replicated. Second Growth Stage (G2) when organelles grow and divide and energy stores are increased.

Card 3

Front

What happens in nucleur division?

Back

Preview of the front of card 3

Card 4

Front

What happens in cell division?

Back

Preview of the front of card 4

Card 5

Front

The length of a complete cell cycle varies greatly. A mammalian cell takes about 24 hours. How much of this cell cycle is interphase?

Back

Preview of the front of card 5
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