Which Statement About Thyroxine Is True

question 34

Multiple Choice

Which statement about thyroxine is true?

• A) T₄ is made up of one tyrosine residue with four iodine atoms attached.
• B) T₄ is released in smaller quantities than T₃.
• C) T₃ can be converted to T₄ within target cells.
• D) Cold exposure for several days prompts increased conversion of T₄ to T₃.
• E) T₄ is more active than T₃.

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Definitions:

Adjusted Basis

The original cost of a property adjusted for improvements, depreciation, and certain other factors, used to calculate capital gains or losses.

Fair Market Value

The price that property would sell for on the open market, often used in the context of real estate and tax assessments.

Recognized Gain

The amount of gain that is subject to tax in the year of a transaction.

Realized Gain

The profit earned from the sale of an asset, such as stocks, bonds, or real estate, which becomes taxable when the asset is sold.