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Which of these is the second of the three stages of cell signaling? |
transduction |
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Receptors for nonsteroid hormones are located in _____. |
association with a cell’s plasma membrane |
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Which of these is a nonsteroid hormone? |
epinephrine and oxytocin |
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How do nonsteroid hormones differ from steroid hormones? |
nonsteroid hormones act via signal transduction pathways; steroid hormones do not act via signal transduction pathways ( Since they do not enter the cell, nonsteroid hormones act via signal transduction pathways.) |
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Which of these extracellular signal molecules could diffuse through a plasma membrane and bind to an intracellular receptor? |
estrogen |
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The primary reason steroid hormones usually act slowly is that _____. |
they turn genes on or off and it takes time for gene products to build up or become depleted |
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Steroid hormone-receptor complexes act in _____. |
the nucleus |
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Which of these glands secretes releasing hormones? |
hypothalamus |
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Which of these hormones are responsible for the "fight or flight" response to danger? |
epinephrine and norepinephrine |
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Adrenocorticotropic hormone (ACTH) triggers the release of _____ in response to stress. |
glucocorticoids ( In response to stress, ACTH stimulates the adrenal cortex to secrete glucocorticoids.) |
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_____ are the main male hormones. |
Androgens |
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What hormone promotes water retention by the kidneys? |
antidiuretic hormone (ADH) |
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Which hormone opposes the action of parathyroid hormone? |
calcitonin |
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Which hormone stimulates hormone production by the ovaries and testes? |
luteinizing hormone (LH) ( LH stimulates hormone production by both the ovaries and testes.) |
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Which hormone stimulates milk production? |
prolactin ( Prolactin, secreted by the anterior pituitary, stimulates milk production by the mammary glands.) |
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