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MITOCHONDRIA

Jason Klus Emile Mirzoevs Period 5. MITOCHONDRIA. Structure. Rod shaped organelles. Two membranes: outer and inner. Outer membrane filters out large molecules from entering. Formed by protein ( porin ).

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MITOCHONDRIA

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  1. Jason Klus Emile Mirzoevs Period 5 MITOCHONDRIA

  2. Structure • Rod shaped organelles. • Two membranes: outer and inner. • Outer membrane filters out large molecules from entering. Formed by protein (porin). • Inner Membrane allows certain molecules in, very selective. Uses transport proteins, specifically ones used in respiration.

  3. Structure (continued) • Cristae: folds in the inner membrane, gives high surface area. Enhances productivity of respiration. • Matrix: contains highly specialized proteins (enzymes) and mitochondrial DNA. Contains free ribosomes. • Some processes in respiration catalyzed in matrix. • Inner membrane space: space between inner and outer membranes of mitochondria. Made of enzymes.

  4. TEM Microscope view of a … Mitochondria

  5. Function • Found in all eukaryotic cells. • “Power generator” of the cell. • Site of cellular respiration; process that converts sugars/fats/chemical fuels into ATP with the help of oxygen. • Allow cells to produce 15 times more ATP than normal. • ATP: (Adenosine Triphosphate) “Currency” of the cell. Powers cell activities.

  6. Other Notes • Number of mitochondria is dependent on cells’ metabolic activity. • First discovered in 1800’s. • Named derived from Greek words for “thread” and “granule”. • Between 1 and 10 micrometers in length. • Similar to chloroplasts in plant cells. • Useful in studying evolution and forensic science.

  7. Which is not part of a mitochondrion? Matrix Cristae Stroma Inner Membrane

  8. Good job. Correct!

  9. Too bad. Wrong!

  10. The matrix contains many different enzymes. True False

  11. Good job. Correct!

  12. Too bad. Wrong!

  13. What do mitochondria help in studying? Human Evolution Photosynthesis Forensic Science Cabinetry

  14. Good job. Correct!

  15. Too bad. Wrong!

  16. Thanks for paying attention. THE END

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