5 Written Questions

1. Cortisol
2. Inhibits adenylyl cyclase
3. α1 receptor
4. Insulin receptor
5. β2 receptor

5 Matching Questions

1. An example of an endocrine signal?
2. Which signal molecules are not stored by cells?
3. The mode of action of NO as a signalling molecule is via
4. Activation of α1 adrenoceptors leads to
5. The G protein Gq

1. a Eicosanoids
2. b Activates Phospholipase C
3. c activation of guanylyl cyclase
4. d activation of phospholipase C
5. e Epinephrine, testosterone

5 Multiple Choice Questions

1. activation of adenylyl cyclase
   1. Activation of α1 adrenoceptors leads to
   2. An example of a steroid hormone?
   3. An example of an endocrine signal?
   4. Activation of β1 adrenoceptors leads to
2. Nerve growth factor, eicosanoids, NO
   1. An example of an endocrine signal?
   2. An example of a steroid hormone?
   3. The G protein Gi
   4. An example of a paracrine signal?
3. Testosterone
   1. Which receptors can be beneficial in asthma?
   2. Which signal molecules are not stored by cells?
   3. Which signal molecule diffuses through the cell membrane to gain access to its receptor?
   4. Example of Ion channel (Ligand-Gated) linked receptor
4. arginine
   1. Steroid and thyroid hormones
   2. Which signal molecules are not stored by cells?
   3. Which receptors can be beneficial in asthma?
   4. Nitric oxide is produced in different tissues by nitric oxide synthase from
5. ACh [direct chemical --> electrical transduction]
   1. An example of a paracrine signal?
   2. An example of a steroid hormone?
   3. An example of an endocrine signal?
   4. Example of Ion channel (Ligand-Gated) linked receptor

5 True/False Question

1. Hormones are stored in vesicles in the cytosol. Hormone release into the extracellularfluid is triggered by a → NO nitric oxide
   

   True        False

2. In which way is the insulin signal transmitted to exert its many effects on target cells? → Eicosanoids
   

   True        False

3. Binding of epinephrine to β2 receptors leads to activation of adenylyl cyclase. Adenylyl cyclase converts ATP to cAMP which, in turn, activates → protein kinase A
   

   True        False

4. Activation of β2 adrenoceptors leads to → activation of phospholipase C
   

   True        False

5. Ras is → A monomeric GTP-binding protein
   

   True        False