Question

local potentials are________, meaning they vary in magnitude according strength of the stimulus.
stabile
graded
self - propagating
excitatory
inhibitory
question 52 (1.7 points) saved
the effect of acetylcholine can be stimulating or inhibiting. which of the followir gives the best explanation for why this is so?
a) acetylcholine has a \dose effect.\ larger doses are stimulating while small doses inhibit.
b) different postsynaptic cells will have different receptors.

Explanation:

For the first question, local potentials are graded. Graded potentials vary in magnitude depending on the strength of the stimulus. A stronger stimulus causes a larger - magnitude graded potential. For the second question, the effect of acetylcholine (stimulating or inhibiting) is due to different postsynaptic cells having different receptors. The nature of the response (stimulation or inhibition) is determined by the type of receptor on the postsynaptic cell that binds to acetylcholine, not the dose.

Answer:

For the first question: graded. For the second question: B) Different postsynaptic cells will have different receptors.