Archaea & Bacteria
What is a bacteria?
Archaea & Bacteria
Cell Type: Prokaryote (no nucleus)
How it Gets Food: Autotrophic & Heterotrophic
Cell Number: Unicellular (single-celled)
Where do you find bacteria?
Archaea Dense mud of swamps and marshes In the guts of animals and termites Very salty lakes and ponds Extremely hot and cold places
Bacteria Everywhere
Basic bacteria cell diagram
Bacteria cell
Types
Bacteria Shapes
Spiral shaped bacteria occur in single strands.
Bacteria Shapes
Rod-shaped bacteria may occur singly or in chains.
Bacteria Shape
Round-shaped bacteria may occur singly or in pairs, chains, or clusters.
Bacteria Characteristics &
Examples Bacteria
Found most everywhere and perform a variety of tasks.
Examples Escherichia coli Staphylococcus
Archaea Lives in extreme
environments Examples
Methanogens Halophiles Thermophiles
Bacteria can be helpful or harmful
Helpful Breaks down dead and
decaying organisms Breaks down sewage Change material that do
not come from living things and make them available for other organisms.
Clean up oil spills
Harmful Causes disease
Bacterial Roles
Producer: Bacteria that transforms energy from the sun into energy that can be used by cells.
Decomposer: Bacteria that gets its energy by breaking down materials in dead or decaying organisms.
Parasites: Bacteria that harms its host.