Which Statements About Receptors and the Neurotransmitters Are True

Multiple Choice

Which statements about receptors and the neurotransmitters are true?
1) Nicotinic and muscarinic receptors respond to NE
2) Adrenergic receptors respond to ACh
3) ACh binding to nicotinic receptors is excitatory
4) Adrenergic receptors are located on postganglionic neuron cell bodies
5) NE can cause an excitatory or inhibitory effect on effectors
6) Nicotine can mimic ACh

A) 1,3,4,6
B) 1,3,5,6
C) 3,5,6
D) 2,4,5
E) 1,2,3,4,5,6