SCIENCE FORM5: CHAPTER 1
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SCIENCE FORM5: CHAPTER 1

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Microorganism and their effect of living things

Microorganism and their effect of living things

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SCIENCE FORM5: CHAPTER 1 SCIENCE FORM5: CHAPTER 1 Presentation Transcript

  • ALGAE PROTOZOA BACTERIA FUNGI VIRUS
  • BACTERIA
  • SIMPLE STRUCTURE OF BACTERIA DRAW AND LABLE IT NOW!!!!!
  • SIZE OF BACTERIA 0.2 μm – 10 μm ( 1 μm = 0.001 mm)
  • SHAPE OF BACTERIA
  • PARASITIC MODES OF NUTRITION SAPROPHYTIC AUTOTROPHIC
  • RESPIRATION AEROBIC ANAEROBIC
  • ASEXUAL BINARY FISSION REPRODUCTION SEXUAL CONJUGATION
  • 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)
  • FUNGI Do not have chlorophyll Some are unicellular such as yeast Some are multicellular such as mucor
  • General structure
  • SIZE OF FUNGI 10 μm – 100 μm ( 1 μm = 0.001 mm)
  • NETWORK OF FILAMENT SHAPE SPHERICAL
  • PARASITIC SAPROPHYTIC MODES OF NUTRITION SAPROPHYTIC PARASITIC
  • Spore formation ASEXUAL Budding REPRODUCTION SEXUAL CONJUGATION
  • 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)
  • PROTOZOA
  • SIZE OF PROTOZOA 5 μm – 250 μm ( 1 μm = 0.001 mm)
  • HABITAT
  • PARASITIC MODES OF NUTRITION SAPROPHYTIC
  • ASEXUAL BINARY FISSION REPRODUCTION SEXUAL CONJUGATION
  • 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)
  • ALGAE
  • 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)
  • VIRUS
  • 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
  • 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
  • Microorganisms growth factors
  • Digestion of food Decomposition Process Medicine Useful microorganisms Agriculture Detergent Food industry