In a Database, Columns That Are Keys of a Different

question 75

Multiple Choice

In a database, columns that are keys of a different table than the one in which they reside are known as ________ keys.

• A) foreign
• B) alternate
• C) relational
• D) candidate

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Definitions:

Carrier Proteins

Proteins that facilitate the transport of specific substances across a cell membrane by changing shape.

Glucose Carrier

Proteins that facilitate the transport of glucose across cell membranes, via mechanisms such as facilitated diffusion.

Urea

A nitrogenous waste product formed in the liver, important in the metabolic breakdown of proteins and excreted in urine.

Isotonic

A term describing a solution that has the same osmotic pressure as some other solution, especially one in a cell or a body fluid.