Infections by Helicobacter Pylori Cause 90% of Peptic Ulcers in the United

question 45

Multiple Choice

Infections by Helicobacter pylori cause 90% of peptic ulcers in the United States.These bacteria have pili that are only expressed in acidic conditions.A characteristic of this organism should be an ability to

• A) enter the bloodstream.
• B) move in the direction opposite the pili.
• C) avoid ingestion by cells in the immune system.
• D) attach to cells in the host organism's stomach.
• E) induce a large antibody response.

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Definitions:

Metamorphosed Fossils

Fossils that have undergone metamorphism, altering their original form and composition due to heat and pressure.

Axial Surface

An imaginary surface connecting all the hinge lines of a fold or a series of folds, often perpendicular to the direction of the fold.

Moderately Inclined

Describes a structure, surface, or geological feature that is tilted or sloped at a gentle to moderate angle.

North-South

A direction or orientation aligning with the Earth's magnetic or true north and south poles.