JAMB Biology 2020 Objective — Question 34
Question 34 of 40 from the Joint Admissions and Matriculation Board (JAMB) Biology 2020 Objective paper, with the correct answer and a full explanation.
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34. Carbon monoxide poisons tissues by (a) combining with haemoglobin, destroying blood vessels (b) killing the cells (c) turning the blood black (d) combining with haemoglobin, reducing oxygen transportation
- A. A. combining with haemoglobin, destroying blood vessels
- B. B. killing the cells
- C. C. turning the blood black
- D. D. combining with haemoglobin, reducing oxygen transportationCorrect
Explanation
Carbon monoxide poisons tissues by combining with haemoglobin. The effect of this is that less haemoglobin will be available for oxygen transportation. This may lead to suffocation and eventual death.
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