A Block in the Urea Cycle Can Result from a Deficiency

question 3

Multiple Choice

A block in the urea cycle can result from a deficiency in any of these enzymes except:

• A)glucokinase.
• B)carbamyl phosphate synthetase I.
• C)arginase.
• D)argininosuccinic acid lyase.

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Definitions:

Independent Variable

The factor proposed to change the behavior under study in an experiment; it is systematically manipulated during an experiment.

Experimental Research

A research design that permits inferences about cause and effect by exerting control, systematically manipulating a variable, and studying the effects on measured variables.

Control Group

In experimental research, the group of participants that does not receive the experimental treatment, used for comparison purposes.

Random Assignment

A method of assigning participants that ensures each participant has an equal chance of being assigned to the experimental group or control group.