SSC Ecology And Environment Sample Paper NCERT Sample Paper-2

  • question_answer
    Carbon monoxide is a pollutant because it

    A)  Inactivates nerves

    B)  Inhibits glycolysis

    C)  Combines with \[{{O}_{2}}\]

    D)  Combines with haemoglobin

    Correct Answer: D

    Solution :

    [d] Carbon monoxide is colourless, odourless, and tasteless, but highly toxic. It combines with haemoglobin to produce carboxyhaemoglobin, which usurps the space in haemoglobin that normally carries oxygen, but is ineffective for delivering oxygen to bodily tissues. Concentrations as low as 667 ppm may cause up to 50% of the body's haemoglobin to convert to carboxyhaemoglobin. A level of 50% carboxyhaemoglobin may result in seizure, coma, and fatality.

You need to login to perform this action.
You will be redirected in 3 sec spinner