Match each of the cofactors below with their function in the citric acid cycle. A function may be used more than once or not at all.
Cofactor
(a) NAD⁺/NADH Function (1)
(b) FAD/FADH₂ (1) carries O₂
(c) CoA (2) carries small carbon-containing molecules
(d) thiamine (3) carries e⁻
(e) biotin (4) carries small nitrogen-containing molecules