Monerans, Protista, Viruses

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Monerans, Protista, Viruses
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Kingdom Protista

• Characteristics
• All Lack Tissues
• Live in Wet Environments
• Are Eukaryotic Cells
• Most are unicellular or colonial
• Grouped on the way they get food

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Protozoans

• Animal Like
• Heterotrophs, at the bottom of the food pyramid
• Classified on how they move
• Pseudopods (Amoeba)
• Ciliaphiora (Paramecium)
• Zooflagellates - Non-motile
• Sporozoans - Nonmotile

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Pseudopods (Ameoba)

• Move using pseudopods - extensions of the
  cytoplasm
• example Ameoba

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Ciliaphiora

• Move using cilia - tiny hair-like extensions
• example Paramecium

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Zooflagellates

• Move using flagella - whip-like long projections
• May be present singly, in pairs, or in triplets

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Sporozoans

• Non-motile and parasitic
• May cause disease

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Plant-Like (Algae)

• Are autotrophs, they perform photosynthesis to
  make food
• Can be unicellular, multicellular, or colonial
• Lack cell walls - need water for support
• Primary - at the bottom of the food pyramid
  producers

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Algae Examples

• Dinoflagellates - unicellular w/ 2 flagella
• Diatoms - unicellular, glass-like, non-motile
• Euglena - flagella, planimal, make its own food
  or eat other organisms
• Multicellular algae - leaf-like, can be seen with
  the eye, internal structure different from plants

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Fungus-like Protist

• Are decomposers
• Cell wall contains Chitin
• Two types - Slime Molds Water Molds

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Kingdom Monera

• Main organisms of this group are bacteria
• Prokaryotic Cells
• Characteristics
• Do not have a nucleus or membrane bound
  organelles
• Have a cell membrane
• Have ribosomes
• Single celled organisms

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Monerans

• There are Heterotrophs Autotrophs
• Oxygen Needs
• Obligate Aerobes - need oxygen
• Obligate Anaerobes - do not need oxygen
• Facultative Aerobes - can live with or without
  oxygen

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Monerans

• Bacteria can be helpful or harmful
• Reproduction
• Sexually - Conjunction, involves 2 bacteria that
  exchange genetic material
• Asexually - Binary Fission, cell divides into 2
  cells

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Monerans
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Viruses

• A virus is a nucleic acid surrounded by a protein
  coat
• A virus is not living
• They are not made of cells
• They can only reproduce in living cells

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Viruses

• Viruses have different shapes and appearances

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Reproduction

• Lysogenic Cycle

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Reproduction

• Lytic Cycle

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Monerans, Protista, Viruses