Flashcards in Chapter 2/4: Bacterial External Features Deck (27):
What four structures are found outside the bacterial envelope?
Flagella, Pili, Capsule, Surface array
What is the primary purpose of flagella?
What are the hollow, rigid filaments is flagella made of?
What term means a single flagellum at one pole?
What term means two flagella at the same pole?
What term means a flagella at each pole?
What term means a tuft of three or more flagella?
What term means a tuft of three or more flagella at both poles?
What is the name for a non-polar arrangement of flagella?
What is flagella rotation driven by in bacteria?
Proton motive force
What are the three basic pieces of bacterial flagella?
Filament, Hook protein, Basal body
What piece of the bacterial flagella contains multiple flagellin proteins and is 5-10 um long?
What piece of the bacterial flagella connects the filament to the basal body and is the site of rotation?
What piece of the bacterial flagella produces torque on filament to turn it like a propeller?
What piece of the bacterial flagella extends from the cytoplasm to cell wall?
What two terms describe bacterial motility?
What is the name for internal flagella?
What type of filaments extend from the plasma membrane into the periplasm?
What are two types of non-flagellar bacterial motility?
Gliding motility, Twitching motility
What bacterial structure helps cells stick to surfaces and is sometimes referred to as pili?
What bacterial structure helps cells transfer DNA and plasmids between cells?
What bacterial structure is composed of a thick layer of polysaccharides surrounding the cell wall?
What bacterial structure allows adhesion to surfaces and defense against host immunity?
What bacterial structure can be used as an emergency organic carbon source?
What structure is composed of a crystalline array of interlocking proteins?
What type(s) of cell(s) is/are S-layers found?
Gram positive, Gram negative