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PART - 2 - Unit V : CH - 14 Breathing and Exchange of Gases — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYPART - 2 - Unit V : CH - 14 Breathing and Exchange of Gases2 Marks
Question
What harm can happen if a person sleeps in a closed room with a burning fireplace near him in winter?
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Answer

Carbon monoxide gas comes out from the fireplace burning coal. The ability of carbon monoxide to combine with haemoglobin is approximately 250 times greater than the ability of oxygen. Carbon monoxide combines with haemoglobin to form a stable compound and this part of haemoglobin becomes useless for respiration. Therefore, a person feels suffocated and may even die.

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