In Bacteria, the Biosynthetic Routes for Proline and Arginine Diverge $\delta$

question 9

Multiple Choice

In bacteria, the biosynthetic routes for proline and arginine diverge when glutamate is N-acetylated for arginine synthesis. Which of the following explains why acetylation is required for arginine synthesis but not proline synthesis?

• A)acetylation alters the pK_a of the amine group
• B)acetylation prevents reduction of the amine group in N-acetylglutamate- \(\delta\)-semialdehyde
• C)acetylation activates the amine group for synthesis of the guanidine group of arginine
• D)acetylation prevents the cyclization of N-acetylglutamate-\(\delta\)-semialdehyde
• E)none of the above

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Definitions:

Variable Cost

Expenses that change in proportion to the amount of goods produced or the volume of sales.

Unit Basis

A method or metric used to measure, allocate, or assess something on a per-unit basis, often related to pricing or cost calculations.

Traditional Format

A standard or conventional method of presenting data or information, often used in financial reporting or accounting.

Income Statements

A financial statement that records a company's revenues and expenses over a specific period, showing net profit or loss.