GCU B IO202 EXAM 1 Questions
and answ er s w ith accur ate
r ationales(PASSED)
hormones promote body homeostasis - answer Hormones react on
each other and help keep homeostasis in an organism. Hormones
released from one gland can tell other glands to make different
hormones
Endocrine system - answer -uses hormones
-effects many organs
-is slower and longer lasting
nervous system - answer -uses electricity and chemicals
-has a specific effector organ
-faster
neurotransmitter - answer a chemical compound released by one
neuron to affect the trans membrane potential of another
, hormone - answer -A compound that is secreted by one cell and that
travels through the bloodstream to affect the activities of cells in
another portion of the body.
-Turn existing enzyme "on" or "off"
negative feedback and its role in regulating blood levels of the various
hormones - answer -response to changed body condition
-ex. signals tell body to make changes that will bring back to normal
level.
-once back to normal, will turn off.
Three types of intercellular communication pathways that enable the
body to maintain homeostasis - answer -direct communication
-paracrine
-endocrine
Direct communication - answer occurs between 2 types of the same cell
paracrine - answer Most common. uses chemical signals to transfer
from cell to cell within single tissue
Endocrine - answer slower. release into bloodstream. Alters metabolic
activities.
and answ er s w ith accur ate
r ationales(PASSED)
hormones promote body homeostasis - answer Hormones react on
each other and help keep homeostasis in an organism. Hormones
released from one gland can tell other glands to make different
hormones
Endocrine system - answer -uses hormones
-effects many organs
-is slower and longer lasting
nervous system - answer -uses electricity and chemicals
-has a specific effector organ
-faster
neurotransmitter - answer a chemical compound released by one
neuron to affect the trans membrane potential of another
, hormone - answer -A compound that is secreted by one cell and that
travels through the bloodstream to affect the activities of cells in
another portion of the body.
-Turn existing enzyme "on" or "off"
negative feedback and its role in regulating blood levels of the various
hormones - answer -response to changed body condition
-ex. signals tell body to make changes that will bring back to normal
level.
-once back to normal, will turn off.
Three types of intercellular communication pathways that enable the
body to maintain homeostasis - answer -direct communication
-paracrine
-endocrine
Direct communication - answer occurs between 2 types of the same cell
paracrine - answer Most common. uses chemical signals to transfer
from cell to cell within single tissue
Endocrine - answer slower. release into bloodstream. Alters metabolic
activities.
