Monera And Protista

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Eubacteria

Back 1

-(commmon bacteria) are mostly heterotrophs.
-use food made by other organisms
-many of them are saprobes;food is dead organic material.

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why is bacteria important to our environment?

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-Bacteria are important decomposers that recycle nutrients back into the environment.
-They are also important ecologically for nitrogen fixation; reduction of atmospheric nitrogen into ammonia.

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Photosynthesis

Back 3

using sun energy to create food

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Aerobes

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use oxygen in repiration

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Obligate Anaerobes

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live in complete absence of oxygen

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symbiosis

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A relationship between members of different species.

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Animal-like Protists

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lack a cell wall and most are usuaully motile

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Phylum: Sarcodina

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-Amoeba, foraminiferans, and radiolarians.
-move by means of pseudopodia
-some secrete a shell for protection out of calcium or silica materials.

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Plant -like protists

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contain cholorplasts and most have a cell wall.

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Division: Acrasiomycota

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-Celllular slime molds
-lives as single celled amoeboid organism that feeds on bacteria.

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Kingdom: Monera

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the prokaryotic bacteria, which includes eubacteria and archaebacteria.

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Heterotrophs

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bacteria which eat food made by other organisms.

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Cyanobacteria

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(Blue green bacteria)
-are autotrophs

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Chemosynthesis

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-using energy from an inorganic chemical reaction to create food.
-unreliant on sun.
-exp: bacteria living on thermo-vents in the ocean.

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What are the three basic shapes of bacteria?

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Coccus- spherical (Staphyloccocus)
Bacillus-Rod shaped (Streptobacillus)
Spirillium-spiral

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Faculative Anaerobes

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ability to live with or without oxygen

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Phylum: Ciliophora

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-Paramecium
-move by means of cilia.

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Division: euglenophyta

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-common euglena
-no cell wall, carries out photosynthesis, and usually has two flagella.
-green in color

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Division: Bacillariophyta

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-Diatoms
-intricate cell walls that contain silica and no flagella.

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Division: Myxomycota

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-Plasmodial slime molds
Consists of strands of protoplasm streaming along in amoeboid movement that feeds on bacteria.

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" Mycota:

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Fungus or Fungi-like

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Archaebacteria

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rare bacteria that thrive in harsh environments.

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Saprobes

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food is dead organic material

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Autotrophs

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they make their own food by photosynthesis or chemosynthesis.

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Parasitism

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One species, the parasite, benefits from the host

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comensalism

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one species benefits and the other is not harmed or benefited.

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mutualism

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both species benefit

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Phylum: Zoomastigophora

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-trypanosoma brucei (afican sleeping disease)
-Trichonympha collaris (gut of termites)
-these organisms possess one or more flagella.

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Phylum: Sporozoa

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-Plasmodium Vivax (causes malaria)
-all species of sporozoa lack of motility and are internal parasites.

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Division: Dinoflagellata

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-the dinoflagellates
-cell wall, two flagella, and important as phytoplankton(supports ocean life)
-one species of dinoflaggelates is responsible for the red tide which results in nerve toxin accumulation in shellfish.

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Slime Molds

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fungus like protists

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" Phyta"

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plant or plant -like