ANS Lecture 5

Question 1

What does the influx of sodium caused by the the binding of ACh to a ligand gated receptor cause?

Answer 1

Voltage gated channels to open and allow more sodium to enter

Question 2

What do Second Messengers do?

Answer 2

It activates an enzyme called protein kinase which can cause the phosphorylation of various proteins

Question 3

What can Phosphorylation of various proteins by protein kinase do?

Answer 3

Increase or inhibit the activity of a protein

Question 4

What are the Transmitters or Hormones in the Signal Transduction Pathways?

Answer 4

ACh, Noradrenaline and adrenaline

Question 5

What are the receptors in the Signal Transduction Pathway?

Answer 5

Muscarinic and Adrenergic

Question 6

What are G proteins?

Answer 6

Molecules which transduce extracellular signals into an intracellular response

Question 7

What are the main Enzymes in the Signal Transduction Pathway?

Answer 7

Adenylate cyclase

Phospholipase

Question 8

What do the Enzymes in the Signal Transduction Pathway do?

Answer 8

Catalyze the production of Second Messengers

Question 9

What are common second messengers in the Signal Transduction Pathway?

Answer 9

cAMP, IP3, DAG and calcium ions