Science Quiz / Cell Signaling

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Can you name the the HYTQ concepts?

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QuestionAnswer
these receptors bind to signaling molecules that do not diffuse into cell
release mechanism for catecholamine hormones
these proteins have multiple protein binding domains and can form multi-protein complexes for signal transduction
this type of receptor protein is a channel for ion transport
these receptors bind to signaling molecules that diffuse into the cell
Cytosolic domain of this receptor either has intrinsic enzymatic activity or activates an associated enzyme. There is no enzyme activity without ligand.
true or false: intracellular receptors regulate transcription.
Ligand binding activates a G-protein (GTP-binding protein). Activated G-protein stimulates (or inhibits) an effector
thyroid hormones bind which type of receptor? (cell surface or intracellular)
CRE stands for what?
hydrophobic molecules generally bind to _____ receptors.
term for signal that stably occupies a receptor
enzyme that phosphorylates protein target
Phosphotyrosines recruit which adaptor protein
these enzymes remove phosphate groups added by kinases
PKA catalytic subunits phosphorylate what?
steroid hormones bind which type of receptor? (cell surface or intracellular)
QuestionAnswer
Active RTK phosphorylates ______ residues
this protein inactivates G protein
cAMP is synthesized by what?
G proteins are active when what molecule is bound?
which subunit of the G-protein binds GTP and GDP?
these receptors transduce signals across the plasma membrane via changes in receptor protein conformation that lead to changes in receptor protein activity and/or receptor protein
peptide or protein hormones bind which type of receptor? (cell surface or intracellular)
cAMP binds the ______ subunit of protein kinase A (PKA)
release mechanism for protein or peptide hormones
catecholamine hormones bind which type of receptor? (cell surface or intracellular)
release mechanism for steroid hormones
term for molecules that mimics signal of ligand (e.g., drug)
release mechanism for thyroid hormones
this term describes steps that “transduce” signal binding to receptor into cellular response(s)
hydrophilic molecules generally bind to _____ receptors.
this protein activates G proteins by exchanging GDP for GTP

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Created Nov 12, 2011ReportFavoriteNominate
Tags:cell, concept

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