Phospholipids are generally produced from the phosphatidate core structure with a polar head modifying group such as choline. However, a phospholipid called sphingomyelin (see below) is found abundantly in brain and fast neurons. Circle and label all structural features of sphingomyelin which are different from lecithin. 
Definitions:
Q5: What peptide coupling reagent is most commonly
Q5: Write a detailed, stepwise mechanism for the
Q9: Identify the correct IUPAC name for the
Q9: Draw the Haworth structure of β-D-glucopyranose.
Q22: Poly (vinyl acetate) is used in the
Q39: In the lowest energy conformation of the
Q62: Draw the Haworth structure of methyl α-D-xylofuranoside.
Q90: Amides are:<br>A) the most reactive acid derivative.<br>B)
Q92: Provide the IUPAC name for HCONHCH<sub>2</sub>CH<sub>2</sub>CH<sub>3</sub>.
Q119: Which of the standard amino acids is