Choose the best answer

1			Which of the following best describes hormones? Need a Hint?
			A)	Hormones are relatively unstable and work only in the area adjacent to the gland that produced them.
			B)	Hormones are stable, long-lasting chemicals released from glands.
			C)	All hormones are lipid-soluble.
			D)	Hormones are chemical messengers that are released into the environment.
2			The receptor for steroid hormones lies Need a Hint?
			A)	in the cytoplasm.
			B)	within the plasma membrane.
			C)	within the nuclear envelope.
			D)	in the blood plasma.
3			Second messengers are activated in response to Need a Hint?
			A)	steroid hormones.
			B)	thyroxine.
			C)	peptide hormones
			D)	all of these.
4			_________________ regulates the kidney's retention of water. Its secretion is suppressed by alcohol. Need a Hint?
			A)	Prolactin
			B)	Oxytocin
			C)	Thyroxine
			D)	Vasopressin (ADH)
5			Which of the following hormones is not released by the anterior pituitary? Need a Hint?
			A)	melanocyte-stimulating hormone
			B)	gonadotropin-releasing hormone
			C)	thyroid-stimulating hormone
			D)	growth hormone
6			___________________ hormone stimulates the adrenal cortex to produce several of its hormones. Need a Hint?
			A)	Follicle-stimulating
			B)	Luteinizing
			C)	Adrenocorticotropic
			D)	Growth
7			Parathyroid hormone acts to ensure that Need a Hint?
			A)	calcium levels in the blood never drop too low.
			B)	sodium levels in urine are constant.
			C)	potassium levels in the blood don't escalate.
			D)	the concentration of water in the blood is sufficient.
8			The adrenal cortex releases ________________, which stimulates Na+ reabsorption by the kidneys. Need a Hint?
			A)	epinephrine
			B)	aldosterone
			C)	glucose
			D)	cortisol
9			Individuals with type I diabetes Need a Hint?
			A)	lack ß cells in the islets of Langerhans.
			B)	produce enough insulin but lack functional receptors on their cells.
			C)	can control their diabetes with diet and exercise.
			D)	All of these are correct.
10			The hormone melatonin, which is involved in skin blanching in lower vertebrates, is released from the Need a Hint?
			A)	anterior pituitary gland.
			B)	melanocytes.
			C)	pineal gland.
			D)	suprachiasmatic nucleus of the hypothalamus.