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Pro v. Euk

Prokaryote No nucleus Unicellular Example: Bacteria. Eukaryote Nucleus Complex organelles Uni or multicellular Example: Us!. Pro v. Euk. Cell Energy. Responsible organelles Animal cell – mitochondria Plant cell – chloroplast It’s all about ATP Make it or break it.

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Pro v. Euk

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  1. Prokaryote No nucleus Unicellular Example: Bacteria Eukaryote Nucleus Complex organelles Uni or multicellular Example: Us! Pro v. Euk

  2. Cell Energy • Responsible organelles • Animal cell – mitochondria • Plant cell – chloroplast • It’s all about ATP • Make it or break it

  3. Cell membrane – controls what goes in and out ER – tubes for transport Lysosome – digestive enzymes Vacuole – temp. storage Mitochondria – energy! Golgi – repackage stuff Cytoplasm - fluid Organelles

  4. Cell Cycle • Growth and division of cells • IPMAT • Interphase – 80% of the time – DNA copies • Prophase • Metaphase • Anaphase • Telophase

  5. Mitosis •  Process of cell division resulting in two identical cells (daughter cells) that are the same as the parent cell.  Body cells are made.

  6. Meiosis • Process of cell division in which four "daughter" cells are produced from one "parent" cell, each with half of the genes of the parent.  Makes gametes or sex cells.

  7. Meiosis • Mitosis – somatic cells • Meiosis – makes sex cells (sperm & egg) • AKA gametes • Have a half-set of chromosomes (haploid) • 2 cell divisions • Makes 4 cells • Same phases IPMATPMAT

  8. Mitosis 1 cell division Daughter cells identical to parents cells Produces 2 cells 2n → 2n Produces cells for growth and repair No crossing over Meiosis 2 cell divisions Daughter cells different from parents Produces 4 cells 2n → 1n Produces gametes Crossing over Mitosis v. Meiosis

  9. Diffusion & Osmosis • The movement of particles from high to low concentration • Osmosis = water only • Cell membrane responsible • Semi-permeable • Want to achieve homeostasis

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