Microbiology Answers

Why is it necessary to use an antibiotic susceptibility chart (rather than simply the size of the zone of inhibition) to determine whether a bacterial isolate is sensitive, intermediate, or resistant to a particular antibiotic?

A fresh graduate student presented a research proposal on bovine Tuberculosis and strain identification involving conventional culturing techniques in your BSL2 laboratory, what is the hazard, characterize and evaluate the risk that either it is acceptable or not.

1.  What is meant by “R” and “S” forms of bacterial colonies and what relation do they have to capsule formation?

2. of what practical significance are capsule-forming bacteria in industry?

Describe the changes in artery structure associated with circulatory disease.

Explain the changes that high salt, high cholesterol and smoking may have on the structure of arteries to cause atherosclerosis

Why decolorizing is the most critical steps in gram stain?

Hello! I am currently working on an assessment to do with bacteria. I have petri dishes that I have swabbed for bacteria which in result gave me colonies that are countable/visible. However, I have to write down collective data from my results but I have no idea how. The conclusion of my assessment is to see which items has the most bacterial growth but it is hard to calculate this. Do I use some kind of t test? Some formula to do with numbers? I have no materials to measure the bacteria either since the pandemic prevents me from really getting anything from school.

Device-associated infections such as using central venous catheters, endotracheal tubes and urinary catheters are very common in healthcare settings. Can you think of two other activities that occur in hospitals that might be likely to lead to new infections?

Speculate as to what led to the similarity between bacteria from eukaryotic cells?

explain effectiveness and efficiency of the specific and non-specific defences.