Question

question
which of the following statements about muscarinic receptors is false?
answer
they are found at all adrenergic neuroeffector junctions.
they are stimulated by a toxin produced by some poisonous mushrooms.
when stimulated, they produce responses that reflect the activation or inactivation of specific enzymes.
when stimulated, they produce longer - lasting effects than do nicotinic receptors.
i dont know yet

Explanation:

Muscarinic receptors are cholinergic (associated with acetylcholine), not found at all adrenergic (associated with norepinephrine) neuroeffector junctions. Muscarine from poisonous mushrooms stimulates them. Their effects involve enzyme - related processes (like activating or inhibiting enzymes) and are longer - lasting compared to nicotinic receptors.

Answer:

They are found at all adrenergic neuroeffector junctions.