What is the correct sequence, from initial to final, of blue baby disease,…
2025
What is the correct sequence, from initial to final, of blue baby disease, methemoglobinemia, in human infants?
A. Conversion of nitrate ions to nitrite ions by microorganisms in human body
B. Oxidation of ions from Fe(II) to Fe(III) in hemoglobin by nitrite ions.
C. Consumption of nitrate polluted water
D. Forming of abnormal hemoglobin called methemoglobin
Choose the correct answer from the options given below:
- A.
C, B, A, D
- B.
C, A, B, D
- C.
A, D, B, C
- D.
A, C, B, D
Attempted by 4 students.
Show answer & explanation
Correct answer: B
The correct sequence is C-A-B-D. First, infants consume nitrate-polluted water (C). Microorganisms in the body convert nitrate ions to nitrite ions (A). Nitrite ions then oxidize Fe(II) to Fe(III) in hemoglobin (B). This leads to the formation of methemoglobin, causing blue baby disease (D).