Select the answer that is false regarding the effects of Carbon monoxide:


a.The affinity between CO and hemoglobin is 240 times greater than oxygen.

b.Small amounts of CO being present in the inspired air will not affect the firing rate of the peripheral chemoreceptors.

c.The central chemoreceptors will detect the reduction in oxygen delivered to the cells and will increase their firing rate.

d.A small amount of CO in the air will not reduce arterial PO2 levels enough to be sensed by the peripheral chemoreceptors.

e.CO results in a large leftward shift in the O2-hemoglobin association curve.

Respuesta :

Answer: e.CO results in a large leftward shift in the O2-hemoglobin association curve.

Explanation: Once a single molecule of carbon monoxide binds together to hemoglobin, this tends to shifts the hemoglobin-oxygen dissociation curve towards the left, which helps to further increase the affinity and severely impairing the release of oxygen to the tissues.

An odourless and colourless gas that is harmful is known as carbon monoxide. When inhaled this gas is very harmful and unbalances the oxygen content in the circulating blood.

The correct answer is:

Option e. CO results in a large leftward shift in the O₂-hemoglobin association curve.

This can be explained as:

  • A carbon monoxide replaces the oxygen on the RBC and binds at its spot.

  • This results in changes in the haemoglobin-oxygen dissociation arch towards the left.

  • It can lead to poisoning and withholds the heart, brain and kidneys of receiving oxygen.

Therefore, CO does not shift the curve towards the left but towards the right of haemoglobin-oxygen dissociation.

To learn more about carbon monoxide poisoning follow the link:

https://brainly.com/question/3052514