1 / 14

CH10 Cell Reproduction

Explore the reasons for cell reproduction, the structure of chromosomes, and the process of cell division in eukaryotic organisms. Discover the importance of the cell cycle, interphase, and key terms related to DNA replication and division.

jgriggs
Download Presentation

CH10 Cell Reproduction

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CH10 Cell Reproduction

  2. Why Cells Reproduce • Growth of the organism • Replace old or damaged cells • Maintain cell size • Reduce size of cell as it grows • Surface area – to – volume ratio

  3. Chromosomes • Made up of organized and packaged DNA • Deoxyribonucleic Acid • 2m of DNA in one cell (almost 2000 miles of DNA) • genes are segments of DNA (code RNA & Proteins)

  4. In Text Pg 225

  5. Terms to know • Chromatin • DNA and proteins • Nucleosome • Pattern of DNA and proteins together • Histone • Protein what DNA winds around • Chromatid (s) (Sister – identical pair) • Made up of one strand of DNA • Centromere • Holds chromatids together

  6. A Comparison

  7. Preparing for Cell Division • DNA must be copied, sorted, separated • Organelles, in eukaryotes, must be duplicated • Prokaryotes go through binary fission

  8. Eukaryotic Cell Division • Cell Cycle • Repeating sequence of events that occur during the life cycle of a cell • Growth • DNA replication • Division of the nucleus and cytoplasm

  9. Cell Cycle • Interphase consist of the 1st three • G1 (Cell growth) • organelles made • S (Synthesis) • DNA duplicated • G2 (Growth and preparation) • Microtubules form • Mitosis (Nucleus Divides) • Cytokinesis (Cytoplasm Divides)

  10. Interphase • Time in this phase varies • Controlled by signals from proteins and environment • G1 and G2 check points • Determine if cell healthy for division • Checks for mistakes in DNA copies

More Related