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The release of a hormone by a gland is called signal transduction.

A) True
B) False

Correct Answer

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Some nonsteroid hormones do not use a second messenger but are taken into the cell by endocytosis and act directly on their target cells.

A) True
B) False

Correct Answer

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The amino acid tyrosine is used to produce epinephrine and the hormones made in the thymus gland.

A) True
B) False

Correct Answer

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Most cells in the body can respond to many different types of hormones.

A) True
B) False

Correct Answer

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Which of the following is not a peptide hormone?


A) Oxytocin
B) Insulin
C) Antidiuretic hormone
D) All of the above are peptide hormones.

E) All of the above
F) B) and D)

Correct Answer

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Explain the mechanism of steroid hormone action. What is the end product of a steroid hormone?

Correct Answer

Answered by ExamLex AI

Answered by ExamLex AI

Steroid hormones exert their effects by ...

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Prostaglandins are lipid substances derived from cholesterol.

A) True
B) False

Correct Answer

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