A Microbiologist Is Reading a Sputum Culture and Notices Tiny

question 15

Multiple Choice

A microbiologist is reading a sputum culture and notices tiny, translucent colonies growing closely around a b-hemolytic colony on sheep blood agar (SBA) .In fact, the colonies are growing in the area where the blood has been hemolyzed.What is the probable identity of the organism that is growing closely to the b-hemolytic organism, and why are they growing in the hemolyzed area?

• A)Neisseria spp., because they need the factor X in this area
• B)Haemophilus spp., because they need the factor V in this area
• C)Acinetobacter spp., because they need the factors X and V
• D)Alcaligenes spp., because they require antibiotics be added to the media

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Definitions:

Hadrosaur

A type of duck-billed dinosaur that lived during the Late Cretaceous period, known for its flat beak and often elaborate head crests.

Crest

A prominent feature or projection on an animal's body, such as the plumage on the head of a bird or a ridge along a dinosaur's skull, often used for display or signaling.

Species Specific Sounds

Unique vocalizations or sound patterns that are characteristic of particular species, often used for communication.

Earliest Fossils

The oldest known remnants or impressions of ancient organisms preserved in rock.