General science UPPSC 2008 GS-I
Question

Which one of the following forms an irreversible complex with haemoglobin of the blood?

Answer & Solution

Answer: (Detailed Solution Below)

Option C: Carbon monoxide

Detailed Solution:

The correct answer is “Carbon monoxide ”.

Carbon monoxide (CO) forms an irreversible complex with hemoglobin, called carboxyhemoglobin.

CO binds to hemoglobin at the same sites as oxygen, but about 200 times more tightly. This prevents hemoglobin from binding oxygen, which destroys its function and can adversely affect the brain.

Similar Questions:

The colour of the Star is an indication of its
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  2. temperature
  3. luminosity
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List-I (Acid) - List-II (Source)

A. Lactic acid - 1. Lemon
B. Acetic acid - 2. Rancid butter
C. Citric acid - 3. Milk
D. Butyric acid - 4. Vinegar

Code:
A B C D
  1. 1 4 3 4
  2. 3 4 1 2
  3. 2 3 4 2
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1. Maharashtra is the most urbanised State of the country.
2. Urban growth along the coast is converting the area into a concrete jungle.
3. From Mumbai to Ahmedabad, the largest megalopolis of the country is in the offing.
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Codes:
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  3. 2, 3 and 4
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