Question

module test

1. identify what happens with respiration at the cellular level.

o₂ leaves the bloodstream and co₂ enters the bloodstream
co₂ leaves the bloodstream and o₂ enters the bloodstream
co₂ leaves the bloodstream and is expelled as part of exhalation
o₂ leaves the bloodstream and is expelled as part of exhalation

Explanation:

At the cellular level of respiration, cells use oxygen for metabolic processes and produce carbon - dioxide as a waste product. Oxygen diffuses from the bloodstream into the cells, and carbon - dioxide diffuses from the cells into the bloodstream to be transported to the lungs for exhalation.

Answer:

CO₂ leaves the bloodstream and O₂ enters the bloodstream