Microbiology Laboratory Exercise 22 - Bacterial Unknown

These flashcards cover key concepts and vocabulary related to the laboratory exercise on bacterial identification.

Gram-negative rod

A type of bacteria that do not retain the crystal violet stain used in the Gram staining protocol.

Bergey’s Manual of Determinative Bacteriology

A comprehensive reference book used for the identification and classification of bacteria.

Quadrant Streak Plate Technique

A method used to isolate a pure strain from a mixture of bacteria.

Antimicrobial susceptibility testing

Tests conducted to determine the effectiveness of antibiotics against specific bacteria.

CFU

Colony-forming unit, a measure used in microbiology to estimate the number of viable bacteria in a sample.

Clinical Microbiology Laboratory

A laboratory that focuses on the diagnosis of disease by identifying pathogens.

Obligate aerobe

An organism that requires oxygen for survival.

Facultative anaerobe

An organism that can survive with or without oxygen.

Biochemical Tests

Tests performed to identify bacteria based on their biochemical activities.

Purity Check

The process of confirming that a culture contains only the desired organism without contamination.