If Bacteria Living in Salty Seawater Were Displaced to a Freshwater

question 33

Multiple Choice

If bacteria living in salty seawater were displaced to a freshwater environment, the cell structure that would prevent the cells from rupturing is the ______.

• A)slime layer
• B)capsule
• C)endospore
• D)cell membrane
• E)cell wall

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Definitions:

Intrinsic Factor

A protein produced by cells in the stomach lining that is essential for the absorption of vitamin B12 in the small intestine.

Pepsinogen

is the inactive form of pepsin, an enzyme in the stomach that breaks down proteins in food.

Stomach

A digestive organ in the gastrointestinal tract that plays a key role in digestion by secreting stomach acids and enzymes.

Gastric Motility

The movements of the stomach muscles that mix and propel contents through the digestive system.