In Western Countries Up to 10% of the Population Develops

question 35

Multiple Choice

In Western countries up to 10% of the population develops gastric ulcers,many due to Helicobacter pylori.One adaptation this bacteria has is to secrete urease that produces the base ammonia from urea.How would this contribute to Helicobacter pylori causing ulcers?

• A)Ammonia could be used as a food source for bacteriA.
• B)Ammonia would cause the ulcers.
• C)Ammonia would prevent the immune system from killing the bacteria.
• D)Ammonia would neutralize stomach acids allowing bacteria to grow.
• E)Ammonia would kill the bacteria.

---

Definitions:

Excise Tax

A tax imposed on specific goods, services, or activities, such as tobacco, alcohol, or gasoline, usually to raise revenue and discourage consumption of the taxed items.

Income Subsidy

Financial assistance provided by the government to individuals or groups to increase their income.

Indifference Curves

Graphical representations used in microeconomics to illustrate combinations of two goods between which a consumer is indifferent.

Optimal Utility

The highest level of satisfaction or benefit that a consumer can achieve given their resources.