Archaea Flashcards

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1
Q

shape and size

A

cocci or rods. unique shpaes: flat squared or branch cells. 1-3 um in diameter

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2
Q

pm lipid differences

A

bacteria and eukaroya- 2 fatty acids linked by ester bond to carbon 1 and 2 of glycerol
archaea- branched hydrocarbon linked by ether bond to carbon 2 and 3 of glycerol. some are glycerol diether or diglycerol tetraether lipids

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3
Q

are lipids mono or billayer

A

both

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4
Q

what archaea has monolayers

A

hypothermophiles (temp over 85C). monolayers are more rigid

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5
Q

cell walls

A

all diff from bacterial cell walls, most common is S layer

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6
Q

do archaea have peptidoglycan

A

no, have peptidolglycan-like layer called pseudomurein

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7
Q

diff of pseudomurien to peptidoglycan

A

l-amino acids in peptides, does not contain NAM, making it resistant to lyzozyme

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