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Formation of non-functional methaemoglobin causes blue-baby syndrome. This is due to:

  1. A
    excess of arsenic concentration in drinking water
  2. B
    excess of nitrates in drinking water
  3. C
    deficiency of iron in food
  4. D
    increased methane content in the atmosphere.

Solution & Step-by-step Explanation

Blue-baby syndrome (methaemoglobanaemia) occurs when infants ingest water with high nitrate levels. In the body, nitrates are converted to nitrites, which react with hemoglobin to form methaemoglobin. Methaemoglobin cannot effectively carry oxygen, leading to cyanosis (blue skin) and respiratory distress.

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Formation of non-functional methaemoglobin causes blue-baby syndrome. This is due to:
A
excess of arsenic concentration in drinking water
B
excess of nitrates in drinking water
C
deficiency of iron in food
D
increased methane content in the atmosphere.

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Human PhysiologyEnvironmental HealthPollution

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