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Essential Natural Science 1 Unit 7 HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS CONTENTS RESOURCES ACTIVITY LINKS.

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Presentation on theme: "Essential Natural Science 1 Unit 7 HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS CONTENTS RESOURCES ACTIVITY LINKS."— Presentation transcript:

1 Essential Natural Science 1 Unit 7 HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS CONTENTS RESOURCES ACTIVITY LINKS

2 Essential Natural Science 1 Unit 7 Contents The simplest living things Protoctist kingdom Protozoa Algae Microorganisms Beneficial or harmful Illnesses Protection Monera kingdom Characteristics Classification Nutrition Reproduction HOME Viruses Characteristics Infection process HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS

3 Essential Natural Science 1 Unit 7 HOME Resources What are algae like? What are protozoa like? What are bacteria like? How are bacteria classified? Bacteria nutrition How do bacteria reproduce and interact? What is a virus like? Viral infection process Illnesses Protection against infectious diseases HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS Animation: Monerans and Protoctists Interactive activity: Protoctists Links Are all microorganisms harmful?

4 Essential Natural Science 1 Unit 7 genetic material What are bacteria like? flagellum capsule cell wall cell membrane cytoplasm HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS Unicellular Prokaryote Most are heterotrophs. Some form colonies. Habitat: all types

5 Essential Natural Science 1 Unit 7 What are protozoa like? Unicellular Eukaryotes Heterotrophs Aquatic habitats zooplankton Classification (according to the way they move) CLICK TO LEARN MORE HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS CiliatesRhizopodsSporozoaFlagellates

6 Essential Natural Science 1 Unit 7 Unicellular Eukaryotes Heterotrophs Aquatic habitats zooplankton Ciliates FlagellatesRhizopodsSporozoa What are protozoa like? GO BACK flagellum HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS Classification (according to the way they move) Trypanosoma

7 Essential Natural Science 1 Unit 7 Unicellular Eukaryotes Heterotrophs Aquatic habitats zooplankton FlagellatesRhizopodsSporozoa Flagellates GO BACK Classification (according to the way they move) Paramecium What are protozoa like? cilia HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS Ciliates

8 Essential Natural Science 1 Unit 7 Unicellular Eukaryotes Heterotrophs Aquatic habitats zooplankton Classification (according to the way they move) Ciliates Rhizopods Sporozoa What are protozoa like? pseudopods HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS GO BACK Amoeba Flagellates

9 Essential Natural Science 1 Unit 7 What are protozoa like? HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS GO BACK Plasmodium No movement. Unicellular Eukaryotes Heterotrophs Aquatic habitats zooplankton Classification (according to the way they move) CiliatesRhizopods Sporozoa Flagellates

10 Essential Natural Science 1 Unit 7 What are algae like? Classification (according to pigment) CLICK TO LEARN MORE Unicellular or multicellular Eukaryotes Autotrophs Some form colonies. Aquatic habitats phytoplankton HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS FlagellatesBrown algaeFlagellatesRed algaeFlagellatesGreen algaeFlagellates Symbiosis between algae and fungi

11 Essential Natural Science 1 Unit 7 Classification (according to pigment) Unicellular or multicellular Eukaryotes Autotrophs Some form colonies. Aquatic habitats phytoplankton What are algae like? GO BACK HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS FlagellatesBrown algaeFlagellates Red algae FlagellatesGreen algae Red pigment Flagellates Symbiosis between algae and fungi

12 Essential Natural Science 1 Unit 7 Classification (according to pigment) Unicellular or multicellular Eukaryotes Autotrophs Some form colonies. Aquatic habitats phytoplankton What are algae like? HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS GO BACK Flagellates Brown algae FlagellatesRed algaeFlagellatesGreen algae Green, yellowish pigment Flagellates Symbiosis between algae and fungi

13 Essential Natural Science 1 Unit 7 Unicellular or multicellular Eukaryotes Autotrophs Some form colonies. Aquatic habitats phytoplankton FlagellatesBrown algaeFlagellatesRed algaeFlagellates Green algae What are algae like? HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS GO BACK chlorophyll Green pigment Flagellates Symbiosis between algae and fungi Classification (according to pigment)

14 Essential Natural Science 1 Unit 7 What are lichen? Symbiosis between unicellular algae and fungi unicellular algae fungal hyphae HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS Lichen (under a microscope) Fruticose lichen Types of lichen Foliose lichen Crustose lichen GO BACK

15 Essential Natural Science 1 Unit 7 Animation: Monerans and Protoctists HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS

16 Essential Natural Science 1 Unit 7 Bacteria nutrition HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS PhotosynthesisParasites Saprophytes Heterotrophs Autotrophs Symbionts

17 Essential Natural Science 1 Unit 7 Parasites Heterotrophs Autotrophs Bacteria nutrition feed off living things cause illnesses (tuberculosis, cholera) HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS Saprophytes Symbionts Photosynthesis

18 Essential Natural Science 1 Unit 7 Bacteria nutrition HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS Parasites Saprophytes Heterotrophs Autotrophs Symbionts Photosynthesis live on dead or decomposing matter are used to make food milk cheese yoghurt

19 Essential Natural Science 1 Unit 7 Bacteria nutrition HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS Parasites Saprophytes Symbionts Heterotrophs Autotrophs live in the bodies of other living things intestinal bacteria Photosynthesis

20 Essential Natural Science 1 Unit 7 Bacteria nutrition HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS Parasites Saprophytes Heterotrophs Symbionts PHOTOSYNTHESISPHOTOSYNTHESIS oxygen + organic substances cyanobacteria Autotrophs carbon dioxide

21 Essential Natural Science 1 Unit 7 How are bacteria classified? HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS spherical Coccus curved - rod shaped Vibrio Bacillus rod-shaped Spirillum helical

22 Essential Natural Science 1 Unit 7 How do bacteria reproduce and interact? Binary fission minutes 0 30 60 90 1.500 1.000 50 Time (in hours) 5 1520 unfavourable growth of bacteria Environmental conditions Sporulation HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS amount of bacteria (in millions) favourable resistant spores START

23 Essential Natural Science 1 Unit 7 How do bacteria reproduce and interact? Binary fission minutes 0 30 60 90 1.500 1.000 50 time (in hours) 5 1520 unfavourable growth of bacteria Environmental conditions Sporulation HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS amount of bacteria (in millions) favourable resistant spores GO BACK

24 Essential Natural Science 1 Unit 7 What is a virus like? Extremely small Obligate parasites Unable to move Extensive habitat capsid nucleic acid HIV virus HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS viral envelope (membrane)

25 Essential Natural Science 1 Unit 7 cell virus Viral infection process The virus enters the cell. Reproduction and assembly of viral components. New viruses leave the cell. 1 1 HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS 2 3 2 3

26 Essential Natural Science 1 Unit 7 Are all microorganisms harmful? Beneficial microorganisms Harmful microorganisms intestinal flora food antibiotics pathogenic microorganisms spoilage HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS decomposer microorganisms plankton illnesses

27 Essential Natural Science 1 Unit 7 Infection headache vomiting fever Illnesses caused by microorganisms Transmission sexual transmission in food or water in air skin Female Anopheles mosquito Plasmodium Malaria HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS Mortality of some infectious diseases

28 Essential Natural Science 1 Unit 7 Illnesses caused by microorganisms Transmission sexual transmission in food or water in air HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS skin Number of deaths per 100,000 inhabitants Pneumonia Tuberculosis Diarrhea 1900 1910 1920 1930 1940 1950 1960 1970 1980 250 200 150 100 50 GO BACK

29 Essential Natural Science 1 Unit 7 Protection against infectious disease Resources Vaccines Antibiotics Alexander Fleming discovered penicillin. HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS Wash your hands before eating. Eat fresh food. Prevention vaccination penicillin Edward Jenner discovered vaccination.

30 Essential Natural Science 1 Unit 7 HOME Interactive activity: Protoctists HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS

31 Essential Natural Science 1 Unit 7 Links HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS GO TO WEBSITE Microbe zoo GO TO WEBSITE Meet the microbes

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