Multiple Choice
Which endocrine gland secretes adrenocorticotropic hormone (ACTH)?
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16. The Endocrine System
Introduction to the Endocrine System
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Which of the following is not true of testosterone?
A
It plays a role in the development of male secondary sexual characteristics.
B
It is primarily produced in the testes.
C
It is a steroid hormone.
D
It is produced by the adrenal cortex.
Verified step by step guidance1
Understand the role of testosterone: Testosterone is a key hormone in the development of male secondary sexual characteristics, such as facial hair, deepening of the voice, and increased muscle mass.
Identify the primary production site: Testosterone is primarily produced in the testes, which are the male reproductive organs responsible for hormone production and sperm generation.
Recognize the chemical nature of testosterone: Testosterone is classified as a steroid hormone, which means it is derived from cholesterol and has a specific molecular structure that allows it to pass through cell membranes and bind to specific receptors.
Clarify the role of the adrenal cortex: The adrenal cortex is responsible for producing other types of steroid hormones, such as cortisol and aldosterone, but it is not the primary site for testosterone production.
Determine the incorrect statement: Based on the information above, the statement 'It is produced by the adrenal cortex' is not true of testosterone, as its primary production site is the testes.
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