Set the camshaft pulleys to TDC by aligning the TDC marks (A) on the camshaft pulleys with the pointers (B) on the back covers. The Front pulley should be lined up at the 1 timing mark.
Harmful Bacteria. Some of the harmful types of bacteria are those which can cause disease or adversely affect one's health, and these include: Mycobacteria, which are rod-shaped, and neither Gram-positive nor Gram-negative microorganisms that can cause infections of the lungs, skin and other parts of the body.The most common diseases associated with these bacteria are leprosyand tuberculosis.ycobacteria, which are rod-shaped, and neither Gram-positive nor Gram-negative microorganisms that can cause infections of the lungs, skin and other parts of the body. The most common diseases associated with these bacteria are leprosyand tuberculosis.
Most bacteria fall into two types: Gram-positive and Gram-negative. These classifications are based, basically, on the type of cell wall that the bacteria has. Gram-positive bacteria -- such as Streptococcus -- have thin, easily permeable, single-layered cell walls. Gram-negative bacteria -- such as E. coli -- have thicker, less penetrable, two-layer cell walls. For an antibiotic to successfully treat a bacterial infection, it needs to be able to penetrate either or both types of bacterial cell walls. Let's get down and dirty with how antibiotics destroy bacteria.