1 Kingdom Archaebactreria & Eubacteria formally (Prokaryota & Monera) Bacteria Ch 18.2Prokaryotes = no membrane bound organelles (no nucleus or mitochondria)
2 6 Major Kingdoms: Protista Fungi Planta Animalia Archaebacteria EubacteriaProtistaFungiPlantaAnimalia1 cell, prokaryotes1 cell, eukaryotes & algaeMulticelled, absorptive feedersMuticelled, autotrophsMuticelled heterotrophs
3 C. Three major differences between the 2 bacteria Kingdoms: (All are prokaryotes & One celled, Ubiquitous = found everywhere)Many biochemical differencesDifference cell walls and lipid membranesStructure & functions of the of the archaebacteria are more similar to the Eukaryotes
13 IV 3-4Bacteria reproduction: AsexualBinary fissionMitosisReplicateNon-changing conditionsSexualConjugationExchange of DNAVariety inChanging conditions
14 IV 5. Aerobic Bacteria require oxygen & can make cavities!
15 Helpful in the intestines Harmful in other parts of the body Anaerobic Bacteria live without oxygen, in our intestines & may be in polluted watersE. Coli from human fecesHelpful in the intestinesHarmful in other parts of the body
16 IV 6. Endospores Dormant state No reproduction Metabolic activity is shut downProtects bacteria against hostile environments“Come back to life” when favorable
25 Bacteria cultures: Inoculate = to place Agar = culture medium (nutrients)One colony (circle)= billions of bacteriaA colony begins from one bacteriumIncubate at 37oC= body temperatureDO NOT OPEN THE PLATES AFTER INCUBATION!
26 Bactericide test strip: Kills germs! VersusBactericide?Antibiotic?Mouth washNeosporinCleaning agents2. Your choice 3. Your choice4. Saliva5. Saliva plus“Bactericide”Plate 1 = control at my desk
27 Summary Questions: 7. Classified by shape: a. round = cocci 6. View under higher magnification with stains for specific types of bacteria7. Classified by shape:a. round = coccib. rods = bacillic. spiral = spirilli