Choose any on of the bacterial pathogen and discuss its appearance, staining reaction, culture, characteristics, disease caused and mechanism of disease.© BrainMass Inc. brainmass.com October 25, 2018, 9:08 am ad1c9bdddf
Choose any on of the bacterial pathogen and discuss its appearance, staining reation, culture, characteristics, disease caused and mechanism of disease.
The bacteria Mycobacterium tuberculosis look like rough surface, buff colored colonies. The main defining characteristics of the genus Mycobacterium is the property of acid fastness, which is the ability to withstand acid-alcohol mixture after coloration with stains as Ziehl-Neelsen or auramine O. It has the ability to retain dyes (fushsin) when treated with acid solution ( Ziehl-Neelsen stain). The mycobacteria is mainly an intracellular parasite. It is an obligate aerobes and reside in the lungs mostly. It ...
The bacteria Mycobacterium tuberculosis affects the lungs, organs in central nervous system, lymphatic system, and circulatory system. When the bacteria Mycobacterium tuberculosis infect the lungs, it multiply and cause pneumonia, chest pain, coughing up blood, and prolonged cough. The bacteria can spread to other parts of the body and it interrupted the body's immune system. The bacteria cause the lymph node and lungs to enlarge. The bacteria damage the kidneys, bones, and the meninges that line the spinal cord and the brain. This progression of the disease is called tuberculosis or TB.
DNA Replication and Bacterial Infections
Ciprofloxacin, erythromycin, and acyclovir are used to treat microbial infections. Ciprofloxacin inhibits DNA gyrase. Erythromycin binds in front of the A site on the 50S subunit of a ribosome. Acyclovir is a guanine analog.
What steps in protein synthesis are inhibited by each drug?
Which drug is more effective against bacteria? Why?
Which drug is more effective against viruses? Why?
Which drugs will have effects on the host's cells? Why?
Use the index to identify the disease for which acyclovir is used. Why is it more effective than erythromycin for treating this disease?