As far as I know, pH is regulated by the lungs and kidneys. In your blood, pH is represented by C02 + H20 -> H2CO3 -> HCO3- + H+. So, when you exhale rapidly you remove CO2 from your blood. This forces the reaction to favor the reactants and pH increases (Le chatelier's Principle).
As for the kidneys, if the blood pH is too high, then the kidneys will excrete HC03-. If it is too low, it will excrete H+.
Can anyone else think of how pH is regulated?
The Lungs play an essential role in blood pH because inspiration (drawing in of breath) fills the 5 lobes of the lung (left has 2 right has 3) with oxygen. The oxygen (and other components of air such as hydrogen, nitrogen, helium, etc) fills the bronchioles and alveoli. The alveoli, at the end of the respiratory tree, is the site of oxygen exchange with the blood and Carbon Dioxide is released in expiration (exhaling). From a chemical standpoint, Oxygen is a charged particle (charge of -2 hence it's binding affinity to 2 hydrogen atoms each having a positive charge of one to form H2O). Carbon Dioxide is a carbon atom (capable of forming 4 bonds) with 2 oxygens attached making it a O=C=O or CO2 complex thereby facilitating it's removal from the body. Carbon Dioxide is a by-product of several metabolic processes in the body and is pre-dominately regulated by this interchange. Carbon can alkanalize (pH > 7) the blood (hence sodium Bicarbonate (NaCO2) used to reduce acidity) and charged oxygen is a radical that binds to and removes carbon by-product to maintain blood pH.
Explain how carbon dioxide regulates blood pH
the circulatory system
Gastrin
The two systems that control pH in the body are the respiratory system and the renal system. The respiratory system helps regulate pH by controlling the amount of carbon dioxide (CO2) in the blood through breathing. The renal system, or kidneys, regulate pH by excreting or reabsorbing hydrogen ions (H+) and bicarbonate ions (HCO3-) in the urine.
The kidneys control pH by secreting or reabsorbing H+ ions.
i think its poo
The body is regulated by the nervous system and the endocrine system.
The endocrine system.
valves
The nervous system is the central control that sends nerve signals throughout the body for other systems to regulate.
The buffer system
The nervous system is the central control that sends nerve signals throughout the body for other systems to regulate.
The nervous system is the central control that sends nerve signals throughout the body for other systems to regulate.
pH measures acidity so i would say a base would regulate it
A chief function of carbonic acid in the body is to regulate blood pH. It acts as a buffer system, helping to maintain the acid-base balance. Carbonic acid can dissociate into bicarbonate ions, which act as a pH buffer by accepting or donating hydrogen ions as needed to maintain the pH within a narrow range.