Diversity of cell life end of ch7

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Diversity of cell life end of ch7

  1. 1. Diversity of Cell Life<br />
  2. 2. All living things….<br />Composed of cell(s)<br />Same basic chemistry<br />Same organelles<br />Follow same genetic code<br />But are all living things the same?<br />
  3. 3. NO!<br />Differences come from:<br />Ways cells are specialized to do certain jobs<br />Way cells work with other cells to make a multicellular organism<br />
  4. 4. Unicellular<br />Make up most life on earth<br />When a cell IS the organism<br />Single-celled/ unicellular<br />Do everything living thing does:<br />Respond to stimuli<br />Grow<br />Reproduce<br />Transform energy<br />
  5. 5. Yeast<br />
  6. 6. Volvox aureus<br />
  7. 7. Leptospira interrogans<br />
  8. 8. Multicellular Organism<br />Organism made up of many cells<br />Variety<br />Depend on 2 major things about cells:<br />Communication<br />Cooperation<br />Cell Specialization<br />Process in which cells throughout an organism perform different tasks<br />
  9. 9. Specialized Animal Cells<br />Many specializations, for example:<br />Red Blood cells (rbc):<br />Specialized to transport oxygen<br />RBC have protein that binds to oxy in the lungs are carries it all over the body<br />
  10. 10.
  11. 11. Muscle cells:<br />Specialized in movement<br />What oragnelle is going to be big and important in these cells?<br />Cytoskeleton<br />Lots of the protein actin and myosin<br />Specialized Animal Cells<br />
  12. 12.
  13. 13. Liver cells:<br />Specialized in detoxification<br />Have lots of what organelle?<br />Smooth ER<br />Specialized Animal Cells<br />
  14. 14.
  15. 15. Pancreas cells:<br />Specialized in making proteins (enzymes)<br />Makes enzyme that are needed by digestive system to break down food<br />What three organelles are pancreatic cells loaded with (if their main function is making proteins)?<br />Ribosomes. Rough ER, Golgi Apparatus<br />Specialized Animal Cells<br />
  16. 16.
  17. 17. Specialized Plant cells<br />Lots of chemical activity all the time<br />Exchanges carbon dioxide, water vapor, oxygen, and other gases through tiny pores called…?<br />STOMATA<br />Found underside of leaves<br />
  18. 18. Guard Cells:<br />Highly specialized cells that regulate process of gas exchange at the stomatas<br />They monitor plants internal conditions and regulate stomata accordingly<br />If plant needs gas exchange, what will happen to the stomata?<br />open<br />
  19. 19.
  20. 20. Levels of Organization<br />Makes it easier to describe cells in a multicellular organism<br />Cells- basic unit of living things<br />Tissues- group of similar cells that perform a specific function<br />Organs- group of tissues working together to perform a specific function<br />Organ systems- group of organs that work together to perform a specific function<br />ORGANISM<br />
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  23. 23. Study for Chapter 7 Test!!!<br />

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