Lecithin is a phospholipid composed of choline and inositol. It is found in all living cells as a major component of cell membrane.
Which one of the following structural formulae of two organic compounds is correctly identified along with its related function? 

Held on 30 Apr 2011 · Verified 9 Jul 2026.
A - Triglycerid - source of energy e-major
B - Uracil - a component of DNA
A - Lecithin - a component of cell membrane
B - Adenine - a nucleotide that makes up nucleic acids
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