(i) (a) Nucleic acids (DNA and RNA)
(b) Proteins
(ii) Nitrogen fixing bacteria are found in root nodules of legumes and they convert atmospheric nitrogen into soluble nitrates and nitrites.
(i) (a) Nucleic acids (DNA and RNA)
(b) Proteins
(ii) Nitrogen fixing bacteria are found in root nodules of legumes and they convert atmospheric nitrogen into soluble nitrates and nitrites.