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This is a blood agar plate. Identify the hemolysis in section A

A greenish/greyish hue on a blood agar plate indicates _____________ hemolysis. (Pick from: alpha, beta, gamma)

What color would E. coli be while growing on an EMB plate?

This is an EMB agar plate. Give an example of a bacterium growing in sector A.

An important aspect for bacterial growth is membrane fluidity. What is the effect of excessively high temperatures on membrane fluidity?

A new bacterial pathogen has been discovered which can cross the blood-brain barrier and cause bacterial meningitis. What temperature classification would you assign to this bacterium?

What is the mordant used in the Capsule staining procedure?

What is the mordant used in the Gram staining procedure?

Name a media that selects for Gram Positive bacteria.

Serial dilutions are made from a broth culture of Shewanella putrefaciens in order to determine the number of bacteria in the culture.  Following the dilution series, 0.1 ml of the 10-7 dilution tube is plated on Plate A, 0.1 ml of the 10-8 dilution tube is plated on Plate B.  RESULTS Plate A:  427 colonies Plate B:  87 colonies Question: What was the number of bacteria in the original S. putrefaciens broth culture? Note: Make sure your answer reflects proper scientific notation! Use the ^ to denote an exponent, i.e. 1 x 10-4 would be written as 1 x 10^-4. Note: Don’t forget the units. No points without units!