Final answer:
An increase in hydrogen ions remaining after one hour leads to a decrease in bicarbonate reabsorption in the kidneys, resulting in a pH imbalance and acidosis.
Step-by-step explanation:
When an increase in hydrogen ions remains after one hour, this will lead to a decrease in bicarbonate reabsorption in the kidneys. The presence of excess hydrogen ions in the filtrate leads to a decrease in bicarbonate conversion into CO₂, resulting in less bicarbonate being conserved in the body. This can lead to a pH imbalance and acidosis.