ASU BIO 202 Exam -1 questions with answers

ASU BIO 202: Exam #1 questions with
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answers

What are the chemical messengers secreted into the blood
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stream that act on cells far away? - CORRECT ANSWERS
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✔✔hormones


What are released by nerves to affect cells? - CORRECT
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ANSWERS ✔✔neurotransmitters |\




What type of glands secrete chemicals (hormones) into the
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blood? - CORRECT ANSWERS ✔✔endocrine
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What are the cells that are acted on by hormones called? -
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CORRECT ANSWERS ✔✔target organ cells
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What mechanism perform general functions of communication
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and control but a slower, longer-lasting type of control than that
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provided by nerve impulses? - CORRECT ANSWERS ✔✔hormones
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What mechanism binds to receptors on the target cell
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membrane, triggering second messengers to affect the cell's
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activities? - CORRECT ANSWERS ✔✔nonsteroid hormones (first
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messengers)

,What mechanism binds to receptors within the target cell nucleus
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and influence cell activity by acting on DNA? - CORRECT
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ANSWERS ✔✔steroid hormones |\ |\




What, in the regulation of hormone secretion is controlled by
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homeostatic feedback? - CORRECT ANSWERS ✔✔hormone |\ |\ |\ |\ |\ |\


secretion


What, in the regulation of hormone secretion, are mechanisms
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that reverse the direction of a change in a physiological system?
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- CORRECT ANSWERS ✔✔negative feedback
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What, in the regulation of hormone secretion, are mechanisms
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that amplify physiological changes? - CORRECT ANSWERS
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✔✔positive feedback (uncommon) |\ |\




What is secretion of an excess of hormone that is a mechanism
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of endocrine disease? - CORRECT ANSWERS ✔✔hypersecretion
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What is insufficient hormone secretion that is a mechanism of
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endocrine disease? - CORRECT ANSWERS ✔✔hyposecretion
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What intercellular chemical signal is secreted by cells in a local
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area and influences the activity of the same cell type from which
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it was secreted (ex. prostaglandins)? - CORRECT ANSWERS
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✔✔autocrine

, What intercellular chemical signal is produced by a wide variety
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of tissues and secreted into tissue spaces; usually has a localized
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effect on other tissues (ex. histamine, prostaglandins)? -
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CORRECT ANSWERS ✔✔paracrine |\ |\




What intercellular chemical signal is secreted into the blood by
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specialized cells; travels some distance to target tissues and
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influences specific activities (ex. thyroxine, insulin)? - CORRECT
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ANSWERS ✔✔hormone |\




What intercellular chemical signal is produced by neurons and
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functions like hormones (ex. oxytocin, antidiuretic hormone)? -
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CORRECT ANSWERS ✔✔neurohormone |\ |\




What intercellular chemical signal is produced by neurons and
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secreted into extracellular spaces by presynaptic nerve terminals'
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travels short distances and influences post synaptic cells (ex.
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acetylcholine, epinephrine)? - CORRECT ANSWERS |\ |\ |\ |\ |\


✔✔neurotransmitter (neurohumor) |\




What intercellular chemical signal is secreted into the
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environment; modifies physiology and behavior of other
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individuals (ex. sex pheromones released in the urine of many
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animals)? - CORRECT ANSWERS ✔✔pheromone
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What part of the brain governs the pituitary gland which then
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sends signals to endocrine glands? - CORRECT ANSWERS
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✔✔hypothalamus