Discussion
The outer membrane of the Gram-negative cell wall is anchored to the underlying peptidoglycan by means of which of the following?
Answer: A
Correct answer: Braun’s Lipoprotein
Braun’s lipoprotein is the tether: its lipid end is embedded in the inner leaflet of the outer membrane and its protein end is covalently bonded to the peptidoglycan. Without it the outer membrane would not be held in place, and the cell would shed blebs of it.
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