Identify the conjugate acids and bases in the following pairs of substances:

(a) (CH₃)₃ NH ⁺/ (CH₃)₃ N

(b) ⁺H₃N–CH₂COOH/⁺H₃N–CH₂–COO^-

(c) ⁺H₃N–CH₂–COO^–/H₂N–CH₂–COO^-

(d) –OOC–CH₂–COOH/^–OOC–CH₂–COO–

(e) –OOC–CH₂–COOH/-HOOC–CH₂–COO–