Water Balance
Biology: Cambridge International GCSE Supplement, topic 13.1.3
Water Balance
Water levels in the body must be kept relatively constant to control the amount of water and ions diffusing in and out of cells. There are a couple of ways in which water is lost uncontrollably resulting in the disruption of this balance.
Exhalation
- Water in the lungs leaves the body in the person’s breath.
Sweating
- Water, ions and urea are all lost in sweat.
Test yourself on Water Balance
What are the processes that cause the body to lose water uncontrollably?