*HURRY PLEASE* ANSWER ONLY IF YOU ARE FOR SURE
HELPP plz answer & EXPLAIN BOTHHH.
all of the following are functions of lipids in cells EXPECT
a) production of cellulose
b) storage of energy
c) secondary energy source
d) building of cell membranes
unlike carbohydrates & lipids, proteins contain --
a) hydrogen
b) oxygen
c) nitrogen
d) carbon