You Have Isolated a Bacterium from a Contaminated River but You

question 1

Multiple Choice

You have isolated a bacterium from a contaminated river but you are unable to culture it in the laboratory. Which method could you use to identify the organism?

• A) Gram staining
• B) Biochemical testing
• C) MALDI-TOF mass spectrometry
• D) Nucleic acid amplification tests
• E) Antibiograms

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Definitions:

Macrophages

Large white blood cells that are part of the immune system, engulfing and digesting cellular debris, foreign substances, and pathogens.

Vitamin K

A group of fat-soluble vitamins essential for the synthesis of proteins involved in blood coagulation and bone metabolism.

Prothrombin

A protein in blood plasma that is converted into active thrombin during coagulation.

Liver

A large, vital organ in vertebrates, involved in numerous metabolic processes including detoxification, protein synthesis, and the production of biochemicals necessary for digestion.