The Costs of Using an On-Line Database Do NOT Include

question 20

Multiple Choice

The costs of using an on-line database do NOT include which of the following?

• A)Citation and printing charges
• B)Planning and executing the search
• C)Connect charges
• D)Telephone charges
• E)All of the above are costs of using on-line databases.

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Definitions:

Entropy

Disorderliness; a quantitative measure of the amount of the random, disordered energy that is unavailable to do work.

Cofactor

A nonprotein substance needed by an enzyme for normal activity; some cofactors are inorganic (usually metal ions); others are organic (coenzymes).

Enzymes

Biological catalysts that speed up chemical reactions in cells without being consumed in the process.

Enthalpy

Enthalpy is a measurement of the total heat content of a system, reflecting the energy needed to create a system and the energy needed to make room for it by displacing its environment.