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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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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
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
Cell Cycle • Growth and division of cells • IPMAT • Interphase – 80% of the time – DNA copies • Prophase • Metaphase • Anaphase • Telophase
Mitosis • Process of cell division resulting in two identical cells (daughter cells) that are the same as the parent cell. Body cells are made.
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.
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
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
Diffusion & Osmosis • The movement of particles from high to low concentration • Osmosis = water only • Cell membrane responsible • Semi-permeable • Want to achieve homeostasis