Eukaryotic Cell Membranes Contain Large Lipid Molecules Called Sterols,whereas Prokaryotic

Multiple Choice

Eukaryotic cell membranes contain large lipid molecules called sterols,whereas prokaryotic membranes lack sterols.One argument supporting the presence of these sterols in eukaryotes is that ________.

A) unlike prokaryotes,many eukaryotes lack the protection of a cell wall and therefore require sterols to add some strength and rigidity to the membrane
B) eukaryotic nutrients are rich in sterols,which then become embedded in the membrane
C) sterols are essential catalysts for the efficient functioning of the cell membrane
D) sterols are necessary membrane molecules that mediate the transport of dissolved nutrients from the cell environment to the cytosol