EASY MULTIPLE CHOICE!!! Question 49 2 pts Where are action potentials initiated

Question

EASY MULTIPLE CHOICE!!!

Question 49 2 pts Where are action potentials initiated due to a high concentration of sodium channels. Please select all that apply. nodes of Ranvier axon Hillock synaptic boutons axons myelin sheath dendrites Question 50 2 pts The primary function(s) of protein kinase A (PKA) is to Please select all that apply. phosphorylate serine residues on target proteins activate CAMP phosphorylate threonine residues on target proteins phosphorylate tyrosine residues on target proteins Question 51 2 pts Refer to the cell signaling figures sheet provided for this exam (same as the practice quiz diagrams). Put the following figures in the correct order. C, A, B A, C, B B, C, A

Explanation / Answer

49.,Nodes of Ranvier.

50. Phosphorylates serine residues on target proteins.

52. Calcium will not be released.

53. PKA

55. Calcium ATPase activity in the ER.

56. Late G2 phase entering mitosis and S phase.

57.Rb is phosphorylated

Cyclin b is inactive and DNA damage is present.

58. During S phase and early G2.

59.

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