The role of microelements in the synthesis of organic food by plants is . . . . . . .

  • A
    structural
  • B
    nutritive
  • C
    catalytic
  • D
    structural and nutritive

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Energy metabolism is significantly influenced by . . . . . . .

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Which of the following pairs of elements is responsible for the structure and permeability of the cell membrane,respectively?

Which mineral element is associated with energy transfer reactions?

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