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Animal cell be
Animal cell be
Animal cell be
Animal cell be
Animal cell be
Animal cell be
Animal cell be
Animal cell be
Animal cell be
Animal cell be
Animal cell be
Animal cell be
Animal cell be
Animal cell be
Animal cell be
Animal cell be
Animal cell be
Animal cell be
Animal cell be
Animal cell be
Animal cell be
Animal cell be
Animal cell be
Animal cell be
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Animal cell be

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Transcript

  • 1. Animal Cell Structure and Function Done by Vanamala Vaasanthika L ECE “B” I year
  • 2. Cells • Smallest living unit • Most are microscopic
  • 3. Discovery of Cells • Robert Hooke (mid-1600s) – Observed sliver of cork – Saw “row of empty boxes” – Coined the term cell
  • 4. Cell Types • Prokaryotic • Eukaryotic
  • 5. Prokaryotic Cells • First cell type on earth • Cell type of Bacteria and Archaea
  • 6. Eukaryotic Cells • Nucleus bound by membrane • Include fungi, protists, plant, and animal cells • Possess many organelles Protozoan
  • 7. Representative Animal Cell
  • 8. Plasma Membrane • Contains cell contents • Double layer of phospholipids & proteins
  • 9. Movement Across the Plasma Membrane • A few molecules move freely – Water, Carbon dioxide, Ammonia, Oxygen • Carrier proteins transport some molecules – Proteins embedded in lipid bilayer – Fluid mosaic model – describes fluid nature of a lipid bilayer with proteins
  • 10. Cytoplasm • Viscous fluid containing organelles • components of cytoplasm – Interconnected filaments & fibers – Fluid = cytosol – Organelles (not nucleus) – storage substances
  • 11. Cytoskeleton • Filaments & fibers • Made of 3 fiber types – Microfilaments – Microtubules – Intermediate filaments • 3 functions: – mechanical support – anchor organelles – help move substances
  • 12. Nucleus • Control center of cell • Double membrane • Contains – Chromosomes – Nucleolus
  • 13. Nuclear Envelope • Separates nucleus from rest of cell • Double membrane • Has pores
  • 14. DNA • Hereditary material • Chromosomes – DNA – Protiens – Form for cell division • Chromatin
  • 15. Nucleolus • Most cells have 2 or more • Directs synthesis of RNA • Forms ribosomes
  • 16. Endoplasmic Reticulum • Helps move substances within cells • Network of interconnected membranes • Two types – Rough endoplasmic reticulum – Smooth endoplasmic reticulum
  • 17. Rough Endoplasmic Reticulum • Ribosomes attached to surface – Manufacture protiens – Not all ribosomes attached to rough ER • May modify proteins from ribosomes
  • 18. Smooth Endoplasmic Reticulum • No attached ribosomes • Has enzymes that help build molecules – Carbohydrates – Lipids
  • 19. Golgi Apparatus • Involved in synthesis of plant cell wall • Packaging & shipping station of cell
  • 20. Lysosomes • Contain digestive enzymes • Functions – Aid in cell renewal – Break down old cell parts – Digests invaders
  • 21. Mitochondria • Have their own DNA • Bound by double membrane
  • 22. Mitochondria • Break down fuel molecules (cellular respiration) – Glucose – Fatty acids • Release energy – ATP

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