Thyroxine Is a Peptide Hormone,but Its Mechanism Is Different from Other

question 106

Multiple Choice

Thyroxine is a peptide hormone,but its mechanism is different from other peptide hormones.Which of the following statements is true concerning this difference?

• A) It is very specific in the cell type it targets.
• B) It is a stimulant of cellular metabolism and targets all cells.
• C) It causes positive feedback.
• D) It does not require a second messenger to cause a response.

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Definitions:

Total Utility

The cumulative satisfaction or value a consumer receives from consuming a particular quantity of goods or services.

Money Income

The total income a person or entity receives in monetary form, including wages, salaries, benefits, and income from investments.

Marginal Rate

A term used to describe the rate at which one variable changes as another variable changes by a single unit, often applied in economic analysis like the marginal tax rate or marginal rate of substitution.

Substitution

The act of replacing one good or service with another due to changes in price or preference.