Under Iron-Starvation Conditions in the Cell

question 23

Multiple Choice

Under iron-starvation conditions in the cell,

• A) cytosolic aconitase binds to the 3′ UTR of the mRNA encoding the transferrin receptor.
• B) cytosolic aconitase binds to the 3′ UTR of the mRNA encoding ferritin.
• C) cytosolic aconitase blocks translation of the mRNA encoding the transferrin receptor.
• D) the mRNA encoding the transferrin receptor is cleaved by an endonuclease.
• E) All of the above.

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Definitions:

Equity

The value of ownership interest in a company, represented by the shares held by investors.

Depreciation Expense

An accounting method that allocates the cost of a tangible asset over its useful life, representing the wear and tear, deterioration, or obsolescence of the asset.