Bacteria Flashcards
Domain archae?
Found living in extreme habitats reclassified to kingdom archaebacteria
Bacteria used to be classified in what?
Kingdom monera
Vast majority of bacterial species are?
Eubacteria kingdom (eu means true) Bacteria we live with on a daily basis.
All bacteria are prokaryotic which means what?
They lack a cell nucleus and cell organelles. Their genetic information is stored in round chromosomes called plasmids that are in the cytoplasm
All bacteria have a what protecting them from their enviourment?
Cell walls, most have one cell membrane inside the cell wall and some have two
Identifying Bacteria using a microscope?
One method is gram staining; gram positive bacteria retain a violet color gram negative bacteria retain a pink color
What color are the most dangerous pathogenic bacteria?
Pink stain
Whats another way to tell bacteria apart?
The shape; 4 basic shapes Bacilli: rod shape ➖ Vibros: curved rod 〰 Cocci:spheres⚫️ Spirilla: corckscrew ➰
Metabloic diversity is another way to tell them apart what is it?
Multitude ways of getting nutrition.
Chemoheterotrophs define?
Eat organic molecules; vital bacteria for our health, play vital role as ecological decomposers
Photoheterotrophs define
Combine photosynthesis withthe consumption of organic molecules
Photoautotrophs define?
the blue green which used to be considered protist until discovered to be prokaryotic
Chemoautotrophs define?
Use energy from chemical reactions to turn carbon dioxide into organic molecules.
How they use oxygen is another way to tell bacteria apart what I there process?
Obligate aerobes
Obligage anaerobes
Faculative anaerobes
Define obligate aerobes?
Must have oxygen as they use it to burn sugars in the cell just like we do.
Ex. Mycobacterium tuberculosis
