A Research Scientist Is Studying Biochemical Reactions That Take Place

question 134

Multiple Choice

A research scientist is studying biochemical reactions that take place in the liver.  He cultures hepatocytes in a growth media enriched with glutamate labeled with nitrogen isotopes.  After some time, he finds that the nitrogen isotopes are transferred to oxaloacetate, forming aspartate in the process.  Which of the following substances is most likely involved in this reaction?

• A)Biotin
• B)Folic acid
• C)Niacin
• D)Pyridoxine
• E)Riboflavin
• F)Thiamine

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Definitions:

Temperature Homeostasis

The physiological process that regulates the body temperature within a narrow range despite external temperature changes.

Completely Inelastic

A situation in which the demand or supply for a product does not change in response to changes in price.

Inelastic

Refers to a circumstance in which the demand or supply of a product or service is largely unaffected by price fluctuations.

Elastic

Describes a situation in which the demand or supply for a good or service significantly changes in response to price changes.