Zinc Is an Essential Trace Element for Most Organisms

question 43

Multiple Choice

Zinc is an essential trace element for most organisms. Zinc is required in the active site of the enzyme carboxypeptidase where it most likely functions in which of the following ways?

• A) as a noncompetitive inhibitor of the enzyme
• B) as an allosteric activator of the enzyme
• C) as a cofactor necessary for enzyme activity
• D) as a coenzyme derived from a vitamin

Comprehend the simple and complex organization within the central nervous system.

Identify key cellular and molecular components of neurons.

Understand the role of glial cells in the nervous system.

Learn about the flow of information through a neuron.

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Definitions:

Upper Class Limits

The maximum value within a class interval in a frequency distribution, where classes are used to group data.

Class Width

In statistics, the difference between the upper and lower boundaries of a class interval in a frequency distribution.

Categorical Data

Data that represent categories - qualitative data that can be divided into group or categories.

Quantitative

Referring to data or information that can be measured and expressed numerically.