bacteria notes page 266. bacteria: prokaryotes, so single- celled organisms without nucleus and...
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Bacteria NotesPage 266
Bacteria:• Prokaryotes, so single-
celled organisms without nucleus and other organelles like mitochondria
Flagella: •A long, whip-like structure that helps the cell move
Size and Shape:•Vary in size• Spherical
(cocci)
•Rod-like (bacilli)
• Spiral (spirochete)
Food • Some are autotrophs (make food from sun or chemicals) and some are heterotrophs (consume other food)• When your milk or meat spoils, it’s
because a heterotroph has been eating it!
Gram Staining
• A chemical process to classify different bacteria• Gram + have thick peptidoglycan and 1
membrane• Gram – have thin peptidoglycan but 2
membranes
E. Coli (-) and S. aureus (+)
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