Assertion: red blood cell | /r/CapableOf | lack a cell nucleus
Facets:
value: in order to accommodate maximum space
type: PURPOSE
Source sentences:
text: They lack a cell nucleus and most organelles, in order to accommodate maximum space for hemoglobin; they can be viewed as sacks of hemoglobin, with a plasma membrane as the sack.
text: Red blood cells in mammals anucleate when mature, meaning that they lack a cell nucleus.