This lab simulation will use an instrument called a spectrophotometer. This instrument quantitatively measures the amount of light that is absorbed or transmitted by molecules in solution. Different cells and culture media absorb best at a specific, known, wavelength. In this case the amount of light transmission is
This lab simulation will use an instrument called a spectrophotometer. This instrument quantitatively measures the amount of light that is absorbed or transmitted by molecules in solution. Different cells and culture media absorb best at a specific, known, wavelength. In this case the amount of light transmission is related to the number of bacteria present. Optical Density is the value given to the measurement of turbidity. Environmental factors, such as temperature and pH, can disrupt the structure of enzymes, resulting in denaturation and making them unable to function.
The growth of microorganisms can be controlled in the laboratory by altering environmental factors, such as temperature, oxygen content, osmotic pressure, and pH.
write in your own words the Microbial Growth - Effects of pH
PH is a very important criteria for working of the biomolecules inside the cell thereby affecting the growth of an organism . pH is defined as the negative log of hydrogen ion concentration. 1-6 pH is a sign for acidity and 8-14 pH is assigned for alkalinity, finally pH 7 is considered neutral
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