Biology 5090 · O Level · Mineral nutrition

Mineral nutrition — practice question

Insufficient amounts of some mineral ions reduce the growth of young plants. Which effects result from a shortage of magnesium ions and a shortage of nitrate ions?

  • Alack of magnesium ions: the leaves become dark green; lack of nitrate ions: overall growth is stunted
  • Black of magnesium ions: the leaves go yellow in patches; lack of nitrate ions: the plant is unable to form proteins
  • Clack of magnesium ions: the plant is unable to form enzymes; lack of nitrate ions: the plant is unable to form starch
  • Dlack of magnesium ions: the plant is unable to form root hairs; lack of nitrate ions: the leaves become bright green

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