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CH 9 SEC 2

CH 9 SEC 2. BACTERIA. THE BACTERIAL CELL. KEY - THERE ARE BILLIONS OF BACTERIA ON EARTH. KEY - THEY ARE EVERYWHERE. THERE ARE MORE BACTERIA IN YOUR MOUTH THEN THERE ARE PEOPLE ON EARTH KEY - THEY ARE FOUND UNDER ROCKS, IN THE OCEAN, MOUNTAIN TOPS, AND ALL OVER YOUR BODY!. Bacterial cell.

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CH 9 SEC 2

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  1. CH 9 SEC 2 BACTERIA

  2. THE BACTERIAL CELL • KEY- THERE ARE BILLIONS OF BACTERIA ON EARTH. • KEY- THEY ARE EVERYWHERE. THERE ARE MORE BACTERIA IN YOUR MOUTH THEN THERE ARE PEOPLE ON EARTH • KEY- THEY ARE FOUND UNDER ROCKS, IN THE OCEAN, MOUNTAIN TOPS, AND ALL OVER YOUR BODY!

  3. Bacterial cell • KEY- THEY WERE DISCOVERED BY LEEUWENHOEK LOOKING AT SCRAPINGS FROM HIS TEETH • KEY- BACTERIA ARE PROKARYOTES( CELLS WITHOUT A NUCLEUS). THE GENETIC MATERIAL IN THEIR CELLS IS NOT CONTAINED IN A NUCLEUS.

  4. Cont’d • KEY- A BACTERIAL CELL LACKS MANY OTHER STRUCTURES THAT CELLS HAVE LIKE MITOCHONDRIA AND GOLGI BODIES • MOVEMENT- SOME BACTERIA USE A FLAGELLUM (PLURAL FLAGELLA), A LONG WHIP LIKE STRUCTURE THAT HELPS A CELL TO MOVE

  5. SIZES AND SHAPES • KEY- BACTERIA VARY GREATLY IN SIZE • KEY- MOST BACTERIAL CELLS HAVE ONE OF THREE BASIC SHAPES: SPHERICAL, RODLIKE, AND SPRIAL

  6. SKETCH AND LABEL FIGURE 6 ON THE TOP OF PAGE 326

  7. OBTAINING FOOD AND ENERGY • KEY- BACTERIA MUST HAVE FOOD SOURCE AND A WAY OF BREAKING DOWN THE FOOD TO RELEASE ITS ENERGY. • AUTOTROPHS- SOME BACTERIA ARE AUTOTROPHS AND MAKE THEIR OWN FOOD • EX- PLANT LIKE BACTERIA USE SUNLIGHT TO MAKE THEIR OWN FOOD

  8. HETEROTROPHS- BACTERIA THAT DOESN’T MAKE ITS OWN FOOD. • KEY- INSTEAD THESE BACTERIA CONSUME OTHER ORGANISMS OR THE FOOD ORGANISMS MAKE. • EX- THE BACTERIA THAT HELPS LEAVES DECAY ON THE FOREST FLOOR

  9. RESPIRATION • RESPIRATION- IS THE PROCESS BY WHICH BACTERIA BREAKS DOWN FOOD USING OXYGEN

  10. http://app.discoveryeducation.com/search?Ntt=BACTERIA&N=4294939055http://app.discoveryeducation.com/search?Ntt=BACTERIA&N=4294939055

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