Question

what are the structural components of glycerophospholipids that differentiates them from triacylglycerides?
select all that apply:
the presence of a phosphate group
the modification by an amino alcohol
a glycerol backbone
none of the above

Explanation:

Glycerophospholipids have a phosphate group (often modified by an amino alcohol like choline, ethanolamine etc.). Triacylglycerides have three fatty - acid chains esterified to a glycerol backbone. Both have a glycerol backbone. So the presence of phosphate group (and its modification in some cases) differentiates glycerophospholipids from triacylglycerides.

Answer:

the presence of a phosphate group, the modification by an amino alcohol