Unit: Biology Topic: Cell Division EQ: What is the purpose of Cell Division in Multicellular Organisms? Complexity of Multicellular Organisms • CELL DIVISION is more complex in Eukaryotic cells b/c all the organelles have to be duplicated (doubled) along with the DNA! • The DNA is the blueprint for creating all the parts of the cell. Packaged DNA? • CHROMOSOMES: small packages of genetic material (DNA) • Chromosomes make it easier for the cell to replicate (copy) itself • It is easier to move small pieces then a whole nucleus! Two Types of Cell Division A. MITOSIS: For1. Growth 2. Repair B. MEIOSIS: For1. Reproduction: to make babies To Recap! • Multicellular Organisms undergo Cell Division so organism can: 1. Grow to maturity (adulthood) 2. Repair damaged tissue 3. Make sex cells for reproduction (Meiosis) Onion (Plant) Cells Left-Side Drawing 1. Label the “Levels of Organization in the Human Body” 2. Create a sketch of the following slide 3. Make sure to label all the levels! Molecular Cellular DNA Tissue Atoms Organ Organism Organ System