Portage Learning Essential Biology I BIOD 101/BIOL 101
Module 5 Exam All Versions Latest Update
Exam
ligand - answerA molecule with specificity for a given receptor, and binding between the
two causes a change.
intercellular communication - answerinteraction between a cell releasing a ligand, and
the target cell receiving the message
paracrine signaling - answershort distance signaling, important during development for
secretion of growth factors
synaptic signaling - answeroccurs across a synapse
synapse - answersmall gap between signaling cell and target cell
neurotransmitters - answera class of ligand molecules released from neurons,
packaged in vesicles
Autocrine signaling - answerwhen a cell acts as both sender and receiver of a message.
Common to immune and cancer cells
Endocrine signaling - answersignaling over long distances through the circulatory
system, commonly through hormones
hormones - answerligands used as messengers in endocrine signaling
Direct cell-to-cell signaling - answerinvolves contact between cells. ex: gap junctions
intracellular signaling - answercommunication within cells
reception - answeroccurs through receptors usually in cell membrane
transduction - answerwhen the signaling molecule causes an intracellular change, often
in a series of steps or pathway
relay molecules - answermolecules involved in the signal transduction pathway
G protein-coupled receptors (GPCRs) - answerplasma membrane receptors that work
with the help of a G protein
Module 5 Exam All Versions Latest Update
Exam
ligand - answerA molecule with specificity for a given receptor, and binding between the
two causes a change.
intercellular communication - answerinteraction between a cell releasing a ligand, and
the target cell receiving the message
paracrine signaling - answershort distance signaling, important during development for
secretion of growth factors
synaptic signaling - answeroccurs across a synapse
synapse - answersmall gap between signaling cell and target cell
neurotransmitters - answera class of ligand molecules released from neurons,
packaged in vesicles
Autocrine signaling - answerwhen a cell acts as both sender and receiver of a message.
Common to immune and cancer cells
Endocrine signaling - answersignaling over long distances through the circulatory
system, commonly through hormones
hormones - answerligands used as messengers in endocrine signaling
Direct cell-to-cell signaling - answerinvolves contact between cells. ex: gap junctions
intracellular signaling - answercommunication within cells
reception - answeroccurs through receptors usually in cell membrane
transduction - answerwhen the signaling molecule causes an intracellular change, often
in a series of steps or pathway
relay molecules - answermolecules involved in the signal transduction pathway
G protein-coupled receptors (GPCRs) - answerplasma membrane receptors that work
with the help of a G protein
