Paper 3 · November 2023 · Cell Structure and Membranes
Besides glycerol, name the two components that make up a phospholipid molecule.
Model answer
two fatty acids and a phosphate group
Also accepted: fatty acids and a phosphate group, two fatty acid chains and a phosphate group, fatty acids, phosphate group
Explanation
A phospholipid is glycerol joined to two fatty acid chains and one phosphate group, in place of the third fatty acid a triglyceride would carry.
Derived from ZIMSEC Biology 6030/3 Paper 3, November 2023, Q1