Overview. Bacterial pneumonia is an infection in one or both lungs. The bacteria cause the lungâs air sacs (alveoli) to become inflamed and engorged with pus, fluid, and cellular debris. This often impairs the bodyâs ability to exchange oxygen and carbon dioxide.he most common symptoms of bacterial pneumonia are: 1  cough with yellow, green, or blood-tinged mucus. 2  chest pain that worsens when coughing or breathing. 3  sudden onset of chills. 4  fever of 102 degrees or above (lower than 102 in older persons). 5  headache. 6  muscle pain. 7  breathlessness or rapid breathing. 8  lethargy.
In the Lewis model, a base is an electron pair donor. In water, by altering the autoionization equilibrium, bases yield solutions in which the hydrogen ion activity is lower than it is in pure water, i.e., the water has a pH higher than 7.0 at standard conditions.
Nitrogenous base. A nitrogenous base, or nitrogen-containing base, is an organic molecule with a nitrogen atom that has the chemical properties of a base. The main biological function of a nitrogenous base is to bond nucleic acids together. A nitrogenous base owes its basic properties to the lone pair of electrons of a nitrogen atom. Nitrogenous bases are typically classified as the derivatives of two parent compounds, pyrimidine and purine. They are non-polar and due to their aromaticity, planar.