Identify true statements about the synthesis of various lipids.
a. Triacylglycerols are synthesized by adding fatty acid groups to a glycerol backbone.
b. The triacylglycerol biosynthetic pathway provides the precursors for the synthesis of glycerophospholipids.
c. Glycerophospholipids may be synthesized from diacylglycerols.
d. Triacylglycerols are synthesized by adding ketone bodies to a glycerol backbone.
e. Arachidonate is a precursor in the synthesis of prostaglandins.
f. The glycerophospholipid biosynthetic pathway provides precursors for the synthesis of triacylglycerols.