If a Particular Operon Encodes Enzymes for Making an Essential

question 86

Multiple Choice

If a particular operon encodes enzymes for making an essential amino acid and is regulated like the trp operon, then the

• A)amino acid inactivates the repressor.
• B)enzymes produced are called inducible enzymes.
• C)repressor is active in the absence of the amino acid.
• D)amino acid acts as a corepressor.
• E)amino acid turns on transcription of the operon.

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Definitions:

Efficiently Allocated

A situation where resources are distributed in a manner that maximizes the overall benefit to society or an economy, with no way to improve anyone's condition without worsening someone else's.

Marginal Cost

The amount spent on producing one more unit of a good or service.

Average Total Cost

The per unit cost of production, calculated by dividing the total cost by the quantity of output produced.

Economic Profits

Economic profits consist of the total revenue generated by a business minus both its explicit and implicit costs, reflecting the actual profitability including opportunity costs.