E1

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and minerals from root to leaf. (3) Sapwood is the innermost secondary xylem and is lighter in colour. (4) Due to deposition of tannins, resins, oils etc., heart wood is dark in colour. 30 . Match the following : (a) Inhibitor of catalytic (i) Ricin activity (b) Possess peptide bonds (ii) Malonate (c) Cell wall material in (iii) Chitin fungi

  Mineral