What happens to the pH of water if there are aerobic respiring organisms in it and why does this occur?

Answer 1

First of all the pH of your blood plays the major role in controlling the respiration rate. Blood pH is directly linked to C02 levels as H+ + HC02- = C02 + H20 so as C02 levels rise the pH decreases. Your respiratory system is the body's number one way to immediately control pH while the kidneys and intestines are important for longer range control.

Secondly when one hyperventilates they breath off their CO2 making the blood basic creating a metabolic alkalosis rather than an acidosis. People are told to breath into a paper bag, so that they can re-intake the CO2 they are breathing out to restore the appropriate pH before they pass out.

Answer 2

The pH of water generally decreases if there are aerobic respiring organisms present in it. This occurs because these organisms release carbon dioxide as a byproduct of respiration, which reacts with water to form carbonic acid, leading to a decrease in pH. This process is known as carbonation.

Answer 3

The more acidic the pH, the greater the cell respiration rate and vice versa.

Answer 4

The acidity increases therefore the pH decreases because they are releasing CO2 which dissolves in water forming carbonic acid (H2CO3).

So therefore the pH decreases.

Answer 5

Read your book. Thats the answer