In the Urea Cycle Which Molecule Is Transported from the Mitochondrial

question 16

Multiple Choice

In the urea cycle which molecule is transported from the mitochondrial matrix to the cytosol as ornithine is transported in the opposite direction?

• A)Arginine.
• B)Citrulline.
• C)Glutamate.
• D)Carnitine.

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Definitions:

Cheyne-Stokes

A pattern of breathing characterized by a gradual increase in depth followed by a decrease, resulting in temporary cessations of breathing typically associated with heart failure or neurological conditions.

Tachypnea

Abnormally rapid rate of breathing.

Apnea

Absence of respirations for a period of time.

Hyperventilation

Respiratory rate in excess of that required to maintain normal carbon dioxide levels in the body tissues.