Infection with Corynebacterium diphtheriae leads to the formation of (eschars/pseudomembranes/tubercles) which can severely impair respiratory function.

Fill in the blank(s) with the appropriate word(s).


pseudomembranes

Biology & Microbiology

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The minimal bactericidal concentration (MBC) test:

a. utilizes disks impregnated with series of concentrations (i.e., twofold dilutions) of each antimicrobial agent being tested against the bacterial isolate. b. will have an endpoint that is less than or equal to the MIC for each specific antimi-crobial tested. c. is the antimicrobial concentration that yields a 99.9% reduction in CFU/mL, compared to concentration of the original bacterial inoculum. d. measures the ability of an antimicrobial to kill all bacteria in the endpoint MIC tube/well by planting an aliquot from it and incubating it overnight.

Biology & Microbiology

Arrange the following layers from most external to most internal

1 = Cell membrane 2 = Capsule 3 = Cell wall

a. 1, 2, 3 b. 2, 1, 3 c. 2, 3, 1 d. 3, 1, 2 e. 3, 2, 1

Biology & Microbiology

Protists that have a single flagellum are called ____

a. heterokonts b. unikonts c. dikonts d. euglenoids e. rhizarians

Biology & Microbiology

As a youngster, you drive a nail in the trunk of a young tree that is 3 meters tall. The nail is about 1.5 meters from the ground. Fifteen years later, you return and discover that the tree has grown to a height of 30 meters. As a youngster, you drive a nail in the trunk of a young tree that is 3 meters tall. The nail is about 1.5 meters from the ground. Fifteen years later, you return and discover that the tree has grown to a height of 30 meters. About how many meters above the ground is the nail?

A) 0.5 B) 1.5 C) 3.0 D) 15.0

Biology & Microbiology