Norepi binds beta adrenergic receptors on pacemakers cells

Question 1

in pacemaker cells, norepi binds

Answer 1

adrenergic receptors

Question 2

first two steps for increasing heartbeat

Answer 2

activate G protein

activate adenylyl cyclase (uses ATP -> cAMP

Question 3

last two steps for increasing heartbeat

Answer 3

activates protein kinase A

phosphorylates calcium channels

Question 4

diagram

Answer 4

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