Question

what is the role of carbon dioxide in the body?
to be removed from the body as a waste product.
to be converted into oxygen by the lungs during respiration.
to be transported to the brain to aid in cognitive function.
to be produced by the liver as a nutrient.
to be stored in the bones for later use.

Explanation:

• During cellular respiration, carbon dioxide is produced as a waste product.
• The lungs remove carbon dioxide from the body during exhalation.
• Carbon dioxide is not converted into oxygen by the lungs (oxygen is taken in, carbon dioxide is expelled).
• It is not transported to the brain for cognitive function (oxygen is crucial for brain function).
• The liver does not produce carbon dioxide as a nutrient (it's a waste).
• Bones do not store carbon dioxide for later use.

Answer:

To be removed from the body as a waste product.