The toxic effect of carbon monoxide is due to its greater affinity for haemoglobin as compared to oxygen approximately by:
Correct answer: A. 200 times
- A. 200 times
- B. 1000 times
- C. 2 times
- D. 20 times
Explanation
Carbon monoxide is produced due to incomplete combustion, metallurgical operations and naturally by plants as well as animals. Carbon monoxide has 200 times more affinity to hemoglobin as compared to oxygen. Carbon monoxide combines with hemoglobin of blood and forms a stable compound called carboxyhemoglobin. At 50 ppm, CO converts 7.5% of hemoglobin into carboxy hemoglobin within 8 hours. It impairs oxygen transport resulting in headache, decreased vision, cardiovascular malfunction and asphyxial.
Last updated
About Man and His Environment
Ecosystems include biotic and abiotic components, food chains and webs, energy flow, nutrient cycles, populations and ecological relationships. Pollution and conservation cover air, water, soil and noise pollution, their effects on organisms, biodiversity loss, protected areas, sustainable resource use and methods for reducing environmental damage.
Practise Man and His Environment
382 free Man and His Environment MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Biology questions like this
Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
Conversion of ammonium into nitrates is:
In a forest, there are a lot of plants; trees, shrubs, and herbs. What will the Palm trees face if they grow in the same forest?
The animals that feed on organic debris from decomposing plants and animals are called:
Process ensuring the survival of species over long periods of time, even though individual members of the species die.
The position of an organism in a food chain of an ecosystem called: