Question

7. How is pH related to bacterial growth? What controls pH in biological systems

Answer 1

pH related to bacterial grourth The optimum growth pH is the most favorable ph for the growth of an organism. Micro organism that grow optimally at pH dess than 5.5 are called acidophiles. Microorganism that grow best at pH between 8.0 and 10.5 are alkaliphiles. Microorganism that grow best at neutral pH close to y are neutrophiles. Microorganish groueth occur slowly or not at all below the minimum groulth pH and aboue the maximum groulth pH. Acidophiles microorganisms grow best at pH less than 5.5 Alkaliphiles microrganism grow best at pH between 8 - 10.5 Neutrophiles microorganism grow best at pH close to y. so, al microorganism such as bacteria relate to its pH for best growth.

* Buffers controls pH in biological systems. Buffers are important in biological system because of their ability to maintain constant pH conditions. Buffers keep the pH level at its optimum performance, by taking and giving hydrogen ions, so buffers are important to control pH in biological system.