Metabolic Pathways Can Be Controlled Through the Availability of Enzymes

question 121

Multiple Choice

Metabolic pathways can be controlled through the availability of enzymes and modulation of their catalytic activities.Enzyme availability can be regulated via _______, while enzyme activity is commonly regulated via _______.

• A) covalent modification; proteolytic breakdown
• B) allosteric activation and inhibition; covalent modification
• C) gene expression; allosteric activation and inhibition
• D) proteolytic breakdown; gene expression

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Definitions:

Manufacturing Overhead

All indirect costs associated with the manufacturing process, including depreciation, utilities, and salaries for supervisors.

Gross Margin

The difference between sales revenue and the cost of goods sold, indicating the profitability of a company's core activities excluding overhead.

Contribution Margin

The amount of revenue remaining after variable costs have been deducted, which contributes to covering fixed costs and generating profit.

Opportunity Cost

The expense associated with missing out on the second-best option when a choice is made.