Archaea Flashcards
1
Q
shape and size
A
cocci or rods. unique shpaes: flat squared or branch cells. 1-3 um in diameter
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
3
Q
are lipids mono or billayer
A
both
4
Q
what archaea has monolayers
A
hypothermophiles (temp over 85C). monolayers are more rigid
5
Q
cell walls
A
all diff from bacterial cell walls, most common is S layer
6
Q
do archaea have peptidoglycan
A
no, have peptidolglycan-like layer called pseudomurein
7
Q
diff of pseudomurien to peptidoglycan
A
l-amino acids in peptides, does not contain NAM, making it resistant to lyzozyme
