Which of the Following Statements About Hormones Is NOT True

question 28

Multiple Choice

Which of the following statements about hormones is NOT true?

• A)Hormones are secreted into the bloodstream.
• B)Hormones are released from exocrine glands.
• C)Hormones may be classified as peptides or steroids.
• D)Hormones usually affect a target organ.
• E)Cells that react to a hormone have specific receptors for that hormone.

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Definitions:

Sodium

A chemical element with the symbol Na, essential for many bodily functions, including the regulation of blood pressure and fluid balance.

Potassium

A chemical element with symbol K, essential for various cellular processes including the regulation of heartbeat and muscle function.

Tetrodotoxin

A potent neurotoxin found in pufferfish and some other marine species that blocks nerve conduction by inhibiting sodium ion channels.

Sodium Channels

Sodium channels are proteins in cell membranes that allow sodium ions to flow into or out of cells, playing vital roles in the generation and transmission of electrical signals in neurons and muscle cells.