Microbiology Answers

1. Describe how you would detect the presence of a non-culturable prokaryote in an environmental sample. 
2. Extremophiles are considered an important area for research in the development of therapeutic drugs or industrial applications. Why do you think this is so?

Low levels of estrogen and progesterone in the blood will result in?

Jessica was in the hospital for an extended period with a severe respiratory infection. During

that period she received multiple IM injections and was discharged with orders to continue the

injections daily until the doctor advised her to discontinue them. The nursing staff had been

injecting the medication into the gluteal area, but this area was becoming sore from all of the

prior injections. What options might she use for the future to avoid pain in the area of the

injections?

1) In stool culture, the following media are used for direct/primary plating:

Salmonella Shigella Agar (SSA) and MacConkey Agar (Mac). With regards to the

two culture media, give the following:

a. media classification (i.e. general, differential, selective) of the 2 culture media

b. sugar/s incorporated in the media

c. colonial appearance of probable enteropathogens

2) With reference to urine culture give the following:

a. method of streaking the primary plates and the reason for such method

b. significance of the different colony count in urine culture

Identify the different morphological diversification elements

how is the CTSA growth medium designed to meet the nutritional need of psychrotrophs

What makes the acid-fast bacteria more pathogenic than other bacteria?

What will be the microscopic appearance of Mycobacterium after gram staining? Explain why.

1) When is rectal swab specimen acceptable for culture of enteropathogens?  

2) What is the most accurate method for species identification of Salmonella and Shigella?  

What are prokaryotes?