ASU B IO 202: Exam #1 Qu estions
an d answ er s w ith accu r ate
r ationales(PASSED)
hormones - answer What are the chemical messengers secreted into
the blood stream that act on cells far away?
neurotransmitters - answer What are released by nerves to affect cells?
endocrine - answer What type of glands secrete chemicals (hormones)
into the blood?
target organ cells - answer What are the cells that are acted on by
hormones called?
hormones - answer What mechanism perform general functions of
communication and control but a slower, longer-lasting type of control
than that provided by nerve impulses?
nonsteroid hormones (first messengers) - answer What mechanism
binds to receptors on the target cell membrane, triggering second
messengers to affect the cell's activities?
,steroid hormones - answer What mechanism binds to receptors within
the target cell nucleus and influence cell activity by acting on DNA?
hormone secretion - answer What, in the regulation of hormone
secretion is controlled by homeostatic feedback?
negative feedback - answer What, in the regulation of hormone
secretion, are mechanisms that reverse the direction of a change in a
physiological system?
positive feedback (uncommon) - answer What, in the regulation of
hormone secretion, are mechanisms that amplify physiological
changes?
hypersecretion - answer What is secretion of an excess of hormone that
is a mechanism of endocrine disease?
hyposecretion - answer What is insufficient hormone secretion that is a
mechanism of endocrine disease?
autocrine - answer What intercellular chemical signal is secreted by cells
in a local area and influences the activity of the same cell type from
which it was secreted (ex. prostaglandins)?
, paracrine - answer What intercellular chemical signal is produced by a
wide variety of tissues and secreted into tissue spaces; usually has a
localized effect on other tissues (ex. histamine, prostaglandins)?
hormone - answer What intercellular chemical signal is secreted into
the blood by specialized cells; travels some distance to target tissues
and influences specific activities (ex. thyroxine, insulin)?
neurohormone - answer What intercellular chemical signal is produced
by neurons and functions like hormones (ex. oxytocin, antidiuretic
hormone)?
neurotransmitter (neurohumor) - answer What intercellular chemical
signal is produced by neurons and secreted into extracellular spaces by
presynaptic nerve terminals' travels short distances and influences post
synaptic cells (ex. acetylcholine, epinephrine)?
pheromone - answer What intercellular chemical signal is secreted into
the environment; modifies physiology and behavior of other individuals
(ex. sex pheromones released in the urine of many animals)?
hypothalamus - answer What part of the brain governs the pituitary
gland which then sends signals to endocrine glands?
an d answ er s w ith accu r ate
r ationales(PASSED)
hormones - answer What are the chemical messengers secreted into
the blood stream that act on cells far away?
neurotransmitters - answer What are released by nerves to affect cells?
endocrine - answer What type of glands secrete chemicals (hormones)
into the blood?
target organ cells - answer What are the cells that are acted on by
hormones called?
hormones - answer What mechanism perform general functions of
communication and control but a slower, longer-lasting type of control
than that provided by nerve impulses?
nonsteroid hormones (first messengers) - answer What mechanism
binds to receptors on the target cell membrane, triggering second
messengers to affect the cell's activities?
,steroid hormones - answer What mechanism binds to receptors within
the target cell nucleus and influence cell activity by acting on DNA?
hormone secretion - answer What, in the regulation of hormone
secretion is controlled by homeostatic feedback?
negative feedback - answer What, in the regulation of hormone
secretion, are mechanisms that reverse the direction of a change in a
physiological system?
positive feedback (uncommon) - answer What, in the regulation of
hormone secretion, are mechanisms that amplify physiological
changes?
hypersecretion - answer What is secretion of an excess of hormone that
is a mechanism of endocrine disease?
hyposecretion - answer What is insufficient hormone secretion that is a
mechanism of endocrine disease?
autocrine - answer What intercellular chemical signal is secreted by cells
in a local area and influences the activity of the same cell type from
which it was secreted (ex. prostaglandins)?
, paracrine - answer What intercellular chemical signal is produced by a
wide variety of tissues and secreted into tissue spaces; usually has a
localized effect on other tissues (ex. histamine, prostaglandins)?
hormone - answer What intercellular chemical signal is secreted into
the blood by specialized cells; travels some distance to target tissues
and influences specific activities (ex. thyroxine, insulin)?
neurohormone - answer What intercellular chemical signal is produced
by neurons and functions like hormones (ex. oxytocin, antidiuretic
hormone)?
neurotransmitter (neurohumor) - answer What intercellular chemical
signal is produced by neurons and secreted into extracellular spaces by
presynaptic nerve terminals' travels short distances and influences post
synaptic cells (ex. acetylcholine, epinephrine)?
pheromone - answer What intercellular chemical signal is secreted into
the environment; modifies physiology and behavior of other individuals
(ex. sex pheromones released in the urine of many animals)?
hypothalamus - answer What part of the brain governs the pituitary
gland which then sends signals to endocrine glands?
