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WorksheetsCell signalling GPCRs
Total questions: 11
Worksheet time: 8mins
In the cAMP-PKA pathway, ___ is the effector protein.
cAMP
Protein Kinase A
Adenylyl cyclase
Phospholipase C
Rearrange the steps involved in the initiation of Ca2+ flux by Epinephrine.
Kinases converts phosphatidylinositol (PI) to PIP2
Phospholipase C catalyzes cleavage of PIP2 to DAG & IP3
Inositol trisphosphate (IP3) binds to ligand-gated Ca2+ channels
Ca2+ is released from intracellular stores in the SER and mitochondria
Which enzyme is activated by cAMP in the signaling pathway?
Protein kinase A
Phospholipase C
Glycogen synthase
Adenylyl cyclase
What is the primary function of phospholipase C in cell signaling?
To phosphorylate glycogen synthase
To degrade cAMP
To produce inositol trisphosphate
To activate protein kinase A
Which G protein subunit is primarily involved in activating adenylyl cyclase?
Gi
Gs
Gq
G12
Excited Rhodopsin activates the G Protein named (a)
