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SCIENCE FORM5: CHAPTER 1

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Microorganism and their effect of living things

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  • slide 6 has some mistakes. The bacillus and the spirillum were mismatched.The structure of swirling like a spring organism should be spirillum and kind of rod organism is bacillus. Thank you :)
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SCIENCE FORM5: CHAPTER 1

  1. 1. ALGAE PROTOZOA BACTERIA FUNGI VIRUS
  2. 2. BACTERIA
  3. 3. SIMPLE STRUCTURE OF BACTERIA DRAW AND LABLE IT NOW!!!!!
  4. 4. SIZE OF BACTERIA 0.2 μm – 10 μm ( 1 μm = 0.001 mm)
  5. 5. SHAPE OF BACTERIA
  6. 6. PARASITIC MODES OF NUTRITION SAPROPHYTIC AUTOTROPHIC
  7. 7. RESPIRATION AEROBIC ANAEROBIC
  8. 8. ASEXUAL BINARY FISSION REPRODUCTION SEXUAL CONJUGATION
  9. 9. Bacteria CHARACTERISTICS EXPLANATION 1. SIZE 0.2 μm – 10 μm ( 1 μm = 0.001 mm) 2. SHAPE coccus bacillus Spirilla Vibrio 3. MODES OF NUTRITION Autotrophic, Saprophytic and Parasitic 4. HABITAT Air, Water, Soil, Food, Bodies of other organisms 5. RESPIRATION Aerobic and anaerobic respiration 6. REPRODUCTION Asexual (binary fission) and Sexual (Conjugation)
  10. 10. FUNGI Do not have chlorophyll Some are unicellular such as yeast Some are multicellular such as mucor
  11. 11. General structure
  12. 12. SIZE OF FUNGI 10 μm – 100 μm ( 1 μm = 0.001 mm)
  13. 13. NETWORK OF FILAMENT SHAPE SPHERICAL
  14. 14. PARASITIC SAPROPHYTIC MODES OF NUTRITION SAPROPHYTIC PARASITIC
  15. 15. Spore formation ASEXUAL Budding REPRODUCTION SEXUAL CONJUGATION
  16. 16. Fungi CHARACTERISTICS EXPLANATION 1. SIZE 10 μm – 100 μm ( 1 μm = 0.001 mm) 2. SHAPE Spherical Network of filament 3. MODES OF NUTRITION Saprophytic and Parasitic 4. HABITAT Dark and damp places include decaying matter and bodies of living organisms 5. REPRODUCTION Asexual (Budding, Spore formation) and Sexual (Conjugation)
  17. 17. PROTOZOA
  18. 18. SIZE OF PROTOZOA 5 μm – 250 μm ( 1 μm = 0.001 mm)
  19. 19. HABITAT
  20. 20. PARASITIC MODES OF NUTRITION SAPROPHYTIC
  21. 21. ASEXUAL BINARY FISSION REPRODUCTION SEXUAL CONJUGATION
  22. 22. Protozoa CHARACTERISTICS EXPLANATION 1. SIZE 5 μm – 250 μm ( 1 μm = 0.001 mm) 2. SHAPE Spherical Spindle-shaped Irregular-shaped 3. MODES OF NUTRITION Saprophytic and Parasitic 4. HABITAT Aquatic habitats (pond, drains, river and sea), Damp place, bodies of living organisms 5. REPRODUCTION Asexual (binary fission) and Sexual (Conjugation)
  23. 23. ALGAE
  24. 24. Algae CHARACTERISTICS EXPLANATION 1. SIZE 1 μm – 100 μm ( 1 μm = 0.001 mm) 2. SHAPE Spherical Oval-shaped filamentous 3. MODES OF NUTRITION Autotrophic 4. HABITAT Aquatic habitats (pond, drains, river and sea), Damp place 5. REPRODUCTION Asexual (binary fission, fragmentation, spore formation) and Sexual (Conjugation)
  25. 25. VIRUS
  26. 26. VIRUS • • • • The smallest microorganisms Do not have cellular organisation Do not show characteristics of living cells Do not have cytoplasm, plasma membrane and nucleus • Can be crystallised • Do not feed, respire, excrete or grow • Made up of nucleic acids (DNA) enclosed by protein coat
  27. 27. Virus CHARACTERISTICS EXPLANATION 1. SIZE 0.02 μm – 0.4 μm ( 1 μm = 0.001 mm) 2. SHAPE Spherical rod-shaped cubic 3. MODES OF NUTRITION Virus do not feed 4. HABITAT Live in living host cells, form crystals outside a living cell
  28. 28. Microorganisms growth factors
  29. 29. Digestion of food Decomposition Process Medicine Useful microorganisms Agriculture Detergent Food industry

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