The Bacterium E.coli

question 2

Multiple Choice

The bacterium E.coli

• A) is a normal inhabitant of the mammalian gut.
• B) has some mutant strains that produce toxins and cause disease.
• C) is grown in laboratories around the world.
• D) produces vitamin K.
• E) has all of these characteristics.

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Definitions:

Laryngopharynx

The lower part of the pharynx located behind the larynx, serving as a passageway for both food to the esophagus and air to the larynx.

Segmental Bronchi

Segmental bronchi are branches of the bronchial tree that direct air to specific segments of the lungs for gas exchange.

Lobar Bronchi

The airways in the lungs that branch off from the main bronchus for each lobe of the lungs, facilitating the flow of air in and out.

Terminal Bronchioles

The smallest airways in the lungs, leading to the alveoli, where gas exchange occurs.