Most common form of nitrogen uptake and usable forms for plants are respectively

  • A
    $NO_{3}^{-}; NO_{2}^{-}$
  • B
    $NO_{3}^{-}; NH_{3}$
  • C
    $NH_{3}; NO_{3}^{-}$
  • D
    $NO_{3}^{-}; NO_{3}^{-}$

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The amino acid which plays a central role in nitrogen metabolism is/are:

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Give differences: Reductive Amination and Transamination.

Which is the appropriate sequence for the amino acid synthesis?

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