The Following Question Refers to This Figure of a Simple

question 80

Multiple Choice

The following question refers to this figure of a simple metabolic pathway:

-If A, B, and C are all required for growth, a strain that is mutant for the gene-encoding enzyme A would be able to grow on which of the following media?

• A) minimal medium
• B) minimal medium supplemented with nutrient A only
• C) minimal medium supplemented with nutrient B only
• D) minimal medium supplemented with nutrient C only
• E) minimal medium supplemented with nutrients A and C

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Definitions:

Stomach Enzyme

Biological catalysts within the stomach that aid in the breakdown and digestion of proteins.

Alcohol Dehydrogenase

An enzyme that breaks down alcohol in the stomach before it enters the blood.

Delirium Tremens

A severe form of alcohol withdrawal involving sudden and severe mental or nervous system changes.

Withdrawal Reactions

Physical or emotional symptoms that occur after reducing or ceasing intake of a substance that was used regularly.