Which of the Following Statements About the Protein Quality Control

question 36

Multiple Choice

Which of the following statements about the protein quality control system in the ER is FALSE?

• A)Chaperone proteins help misfolded proteins fold properly.
• B)Proteins that are misfolded are degraded in the ER lumen.
• C)Protein complexes are checked for proper assembly before they can exit the ER.
• D)A chaperone protein will bind to a misfolded protein to retain it in the ER.

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Definitions:

Fixed Monthly Expenses

Regular expenses that do not vary in amount from month to month, such as rent and salaries.

Net Operating Income

A measure of a company's profitability from its regular, core business operations, excluding deductions of interest and taxes.

Contribution Margin Ratio

The percentage of each sale that remains after variable costs are deducted, indicating how much revenue is contributing to fixed costs and profit.

Operating Leverage

A measure of how sensitive a company's operating income is to a change in sales, reflecting the proportion of fixed costs in the company's cost structure.