The Nature and Variety of Living Organisms

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  • Created by: Talae
  • Created on: 21-02-16 17:15

The Characteristics of Living Organisms

Movement 

Respiration

Sensitivity

Homeostasis

Growth

Reproduction

Excretion

Nutrition

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Features of Animals

  • multicellular
  • nervous coordination
  • move from place to place
  • store CARBOHYDRATE as GLYCOGEN
  • no chloroplasts or cell walls
  • no photosynthesis
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Features of Plants

  • multicellular
  • cells have chloroplast
  • can photosynthesis
  • cellulose cell walls
  • CARBOHYDRATE as STARCH / GLUCOSE
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Features of Bacteria

  • microscopic, single celled
  • have a cell wall, cell membrane, cytoplasm and plasmids
  • no nucleus
  • circular chromosone of DNA
  • some photosynthisise but most feed off of other living organisms
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Features of Viruses

  • smaller than bacteria
  • parasitic and can only live/ reproduce inside living cells
  • all are pathogens
  • wide cariety of shapes and sizes
  • no cellular structure but have a protein coat and contain one type of nucleic acid, either DNA or RNA
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Features of Protocists

  • microscopic, single-celled organsims
  • some have features like animal cells 
  • some are more like plants and have chloroplast
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Features of Fungi

  • some are made up of a mycelium made from thread llike structure called hyphae which contain several nuclei
  • some are single-celled
  • cell walls are made up of chitin
  • saprotrophic nutrition
  • stores CARBOHYDRATES as GLYCOGEN
  • no photosynthesis
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Pathogens

All viruses are pathogens

Pathogen: a disease causing organism 

A pathogen can be a fungus, bacteria, protocist or virus

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