Science Quiz / MNE Dr. Kasid's Material

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Can you name the hormones, receptors, and vocabulary words of Dr. Kasid's lectures?

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Activated JAK proteins catalyze phosphorylation of receptors; phosphorylated tyrosine on such a receptor serves as a docking site for these proteins.
What activity of a G-protein does Cholera toxin disrupt?
All of the following will have epinephrine binding to the Gs beta adrenergic receptors EXCEPT: liver, adipose, intestine, CNS, skeletal muscle.
How many cAMP molecules are required to free PKA from its regulatory subunit complex?
Cyclic AMP can be deactivated through cleavage carried out by which enzyme that is inhibited by caffeine?
Myristoylphorbol acetate is a tumor promotor because it enhances cell growth and proliferation through activation of which compound?
Which type of receptor would cause bronchial dilation after binding its ligand?
Membrane-bound guanylyl cyclase is activated by either guanylin or this compound.
In the RTK-Ras pathway, what protein acts as a GEF?
Atrial Natriuretic Factor (ANF) binds to and activates this receptor.
Vasoconstriction is accomplished through activation of _____ adrenergic receptors
GEF (guanine exchange factor) proteins enhance the dissociation of what molecule from Ras?
Where in the body can alpha adrenergic receptors be found?
Which type of receptor would cause heart rate to increase?
True or False: PLC an PI-3K can be regulated by both GPCR's and RTK's.
What molecule closely associates with cytosolic guanylyl cyclase?
Alpha 2 adrenergic receptors use which G-protein?
In a patient with Cholera toxin, what compound is being constitutively produced?
Leptin receptors use the ________ pathway for downstream signaling.
True or False: RTK's produce cAMP as a second mesenger.
Neuromuscular junctions exhibit which type of ACh receptor?
HintAnswer
Phosphorylation of glycogen phosphorylase kinase and glycogen phosphorylase will deactivate these two enzymes; what protein accomplishes this?
The specificity of a STAT protein is determined in its _____________ domain.
The defective oncogenic form of the EGF receptor is called:
What is the ultimate precursor for epinephrine?
What is the precursor of both IP3 and DAG called?
The huge number of glucose molecules, for example, that are liberated by a single molecule of insulin upstream in the pathway is an example of what?
Pertussis toxin affects the alpha subunit of Gi, preventing it from releasing which compound?
Increases in cytosolic levels of IP3 and DAG are associated with Gq activating which protein?
Calcium inhibits which upstream enzyme by negative feedback?
GRB2is one protein of a pair that links RTK to Ras; what is the other?
The first line of defense against viral inefections involves this system.
PKA is a protein kinase that phosphorylates at which residues?
Alpha 1 adrenergic receptors use which G-protein?
Steroid hormones are able to diffuse through the lipid bilayer because they are:
The appropriate term for an attractive older man who, despite his age, is desired by younger women.
True or False: there is normally a tonic, or basal, level of second messengers present in the cytosol.
All beta adrenergic receptors associate with this G-protein type.
CAPK is a more descriptive term for which protein?
Phosphorylation of the Gs receptor by PKA causes which compound to bind and sequester it further?
In the smooth muscle of the heart or blood vessels, cytosolic guanylyl cyclase is activated by this compound.

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