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Cell Division IAN pg. 83

Cell Division IAN pg. 83. MAIN IDEAS Growth Development Repair Apoptosis Chromosome Histone Nucleosome Chromatin. Objective: Explain and identify specific components of cell division and why it is necessary using notes and peer interaction.

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Cell Division IAN pg. 83

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  1. Cell Division IAN pg. 83 MAIN IDEAS • Growth • Development • Repair • Apoptosis • Chromosome • Histone • Nucleosome • Chromatin Objective:Explain and identify specific components of cell division and why it is necessary using notes and peer interaction.

  2. I. 3 functions of cell division in multicellular organisms A. Growth – multicellular organisms add new cells to increase in size.

  3. B. Development - Cells differentiate /specialize into specific tissues & organs. 210 types in the Human body.

  4. 1. Example: Embryo Development

  5. C. Repair – Old or Damaged cells must be repaired or replaced. 1. Apoptosis – Old cells commit cell suicide, replaced by new cells

  6. DNA = Deoxyribonucleic Acid

  7. A. Eukaryote’s DNA organized in Loose strands or Chromosomes 1. Chromosome – DNA spooled & condensed/packed around proteins calledHistones

  8. a. 8Histones condense to form a nucleosomes

  9. DNA Packaging IAN page 82 DNA Histones Nucleosomes Chromatin Chromosome

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