Adrenaline

Question 1

__________ activates adenylate cyclase and makes cAMP. _________ inhibits adenylate cyclase and blocks cAMP production.

They are ___________________.

Answer 1

Beta 2
Alpha 2
Directly antagonistic

Question 2

The parent molecule of adrenaline is?

Answer 2

Phenylalanine

Question 3

Activation via beta receptors results in:

Answer 3

Increase glycogenolysis, gluconeogenesis, decrease glycogen deposition (skeletal muscle)
Increase fat mobilisation, lipolysis and ketogenesis
Decrease fatty acid synthesis
Increase rate and force of contraction of heart
Increase insulin secretion (low concs)
Relaxation of smooth muscles and vasodilation (low concs)

Question 4

People think dogs do nothing adventurous

Answer 4

Phenylalanine 
tyrosine 
DOPA 
dopamine 
noradrenaline
adrenaline 

Catecholamine synthesis

Question 5

Activation via alpha1 receptors results in:

Answer 5

Increased urea production

Constriction of peripheral blood vessels, gut sphincters and other smooth muscles (high concentrations)

Question 6

At high concentrations of alpha 2 activation…..

Answer 6

Insulin secretion decreases

Question 7

Adrenaline is synthesised in….

Answer 7

Chromaffin cells of adrenal medulla