43. Why is carbon monoxide
toxic for humans?

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Hemoglobin “likes” carbon
(CO) much more it likes oxygen.
there is carbon in the
inhaled it binds to
forming carboxyhemoglobin by
the binding site
oxygen would bind. to the higher
affinity for carbon
thus (e.g., in from car
exhausts) is no oxygen
and the individual hypoxia,
loses conscience, more carbon
monoxide may even die.

by carbon monoxide an
important cause death in fires in
closed garages.