Assertion: lipid's head group | /r/AtLocation | two tails
Facets:
Source sentences:
text: phospholipid on the the exoplasmic side of the plasma membrane is, also with a phosphocholine head group, attached to two 'tails' : sphingosine - an 18-carbon amino alcohol with an unsaturated hydrocarbon chain - and a single fatty acid tail.(PS) is normally found only on the other inner (cytosolic) side of the cell membrane.