What is the importance of pH levels?
* Blood: blood must be kept at a certain pH to ensure the
haemoglobin can bond to oxygen. Otherwise, the formation of
carbonic acid by dissolved carbon dioxide can cause anaemia and
oxygen deprivation. * Plants: many plants require a certain soil
pH, otherwise they are unable to grow. * Bacteria: most bacteria
have a certain range of pH which they grow best in. Outside this
range, growth can be stunted or even prevented entirely. * Enzymes:
Like bacteria, some enzymes work best in certain pH ranges, but
will almost cease entirely when not.