Question

NH₄⁺ is used to synthesise amino acids in plants. For it there are 2 main ways –

(i) α-Ketoglutaric acid + NH_­4⁺ + NADPH

$\overset{\underset{}{Dehydrogenase}}{\overset{\quad Glutamate\quad}{\rightarrow}}$glutamate + H₂O + NADP

(ii)

$R_{1} - \underset{\underset{O}{||}}{C} - COO^{-} + R_{2} - \underset{\underset{N{H_{3}}^{+}}{|}}{\overset{\overset{H}{|}}{C}} - COO^{-}$

• A. Both (i) and (ii) are reductive amination
• B. Both (i) and (ii) are transamination
• C. (i) Is transamination and (ii) is reductive amination
• D. (i) Is reductive amination and (ii) is transamination

Answer 1

Answer: (A)

Both (i) and (ii) are reductive amination