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Cells

Cells. What is the largest cell in the human body? What is the longest cell in the human body? What is the smallest cell in the human body? What are the longest-living cells in the human body? What are the shortest-living cells in the human body?. Cell Trivia.

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Cells

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  1. Cells

  2. What is the largest cell in the human body? • What is the longest cell in the human body? • What is the smallest cell in the human body? • What are the longest-living cells in the human body? • What are the shortest-living cells in the human body? Cell Trivia

  3. What is the largest cell in the human body? • Human egg (or oocyte or ovum) ~ 1mm • What is the longest cell in the human body? • Motor neurons – they can be several feet long! • What is the smallest cell in the human body? • Male sperm ~0.003mm • Olfactory neurons in brain ~ 0.004 – 0.01mm • Red blood cell ~ 0.004 – 0.008mm • What are the longest-living cells in the human body? • Nerve/brain cells – you have them your whole life! • What are the shortest-living cells in the human body? • Probably cells lining the surface of the gut – they only last about 5 days! Cell Trivia

  4. What evidence supports the endosymbiotic theory? Which of these pieces of evidence is strongest? Weakest? History of Cells The Endosymbiotic Theory

  5. Prokaryotic Cells

  6. Bacilli • Spirilli • Cocci Bacterial Cell Shapes

  7. Similarities Between Proks and Euks

  8. The Endomembrane System

  9. Color, label, and briefly describe the functions of the organelles for the cells on your handouts. Your Turn

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