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G-protein Coupled Receptors: Introduction & IP3/DAG

Quiz by Mikey Huijben

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6 questions
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  • Q1
    Put the following events in the epinephrine pathway in the correct chronological order.
    ordering://Binding of epinephrine|1:Activation of G-protein|2:Dissociation of G-protein subunit|3:Activation of G-protein subunit with GTP|4:Binding with adenalyl cylase|5:Production of cAMP|6:Activation of Protein kinase-A (PKA)|7
    Video
    300s
  • Q2
    Which of the following molecules is a transcription factor?
    IP3
    CREB
    Adenalyl cyclase
    cAMP
    Video
    120s
  • Q3
    Which of the following molecules passes the nuclear membrane?
    Regulatory subunit of Adenalyl cyclase
    cAMP
    Catalytic subunit of Adenalyl cyclase
    CREB
    120s
  • Q4
    Put the following events in the IP3/DAG pathway in the correct chronological order.
    ordering://Binding of ligand|1:Activation of G-protein subunit with GTP|2:Dissociation of alpha-subunit of G-protein|3:Activation of phospholipase C-beta|4:Synthesis of IP3 from PIP2|5:Influx of Ca-2+ ions|6: Activation of Protein Kinase C|7:Cellular response|8
    Video
    120s
  • Q5
    Both the epinephrine pathway and the IP3/DAG pathway are G-protein coupled receptor pathways, but they differ a lot from eachother. This is due to the fact that epinephrine-receptor is a beta-type receptor, while the IP3/DAG pathway receptor is an alpha-type receptor. Couple the following molecules or effects to their type of receptor.
    Users sort answers between categories
    Sorting
    300s
  • Q6
    Which of the following is NOT a common second or third messenger in the earlier named G-protein coupled receptors?
    Ca+
    None of the above
    cAMP
    IP-3
    120s

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