Comparing Prokaryotic And Eukaryotic Cells Flashcards
Plural and meaning of cocci
Coccus : Berries
usually round but can be oval, elongated, or flattened on one side
Cocci
Cocci that remains in pairs after dividing
Diplococci
Chain-like pattern cocci
Streptococci
Cocci devide in 2 planes & in remaining groups of 4
Tetrads
Cocci devided in 3 planes cube-like pattern
Sarcinae
Multiple planes & forms grape like cluster cocci
Staphylococci
Plural and meaning of Bacillus
Bacilli : little rods
Bacillus in pair after division
Diplobacilli
Chain-like pattern Bacillus
Streptobacilli
Oval looks like a cocci
Coccobacilli
Have one more twists, they are never straight
Spiral Bac.
Curved rods
Vibrios
helical shape, like a corkscrew & rigid bodies
Spirilla
Helical but flexible
Spirochete
A viscous, gelatinous polymer that is external to the cell wall
Glycocalyx
Glycocalyx is composed of
Polysaccharide, polypeptide or both
2kinds of Glycocalyx
Capsule: firmly attached to cell wall
Slime layer: loosely attached
Attachment in which bacteria can grow on diverse surfaces
Glycocalyx-purpose
Bac. that can grow on diverse surfaces
Streptococcus mutans
Long filamentous appendages that propel bacteria and cause motility, the ability of an organism to move by itself
Flagella
Flagella can be found in
Sperm cell
No flagella
Atrichous
Distributed over the entire cell
Peitrichous
One or both poles at the cell
Monotrichous
Tail of flagella coming from one side pole
Lophotrichous
Have tail at both poles of the cell
Amphitrichous
Movement of a bacterium toward or away from a particular stimulus
Taxis
Wave movement
Cilia
Rotating movement
Flagella and Archaella