Which of the following is incorrect. Graded potentials can...........Question 15Select one:a.act as signals over short distances.b.act as signals over long distances.c.prevent and action potentiald.cause an action potential.e.be caused by chemically gated channels
Question
Which of the following is incorrect. Graded potentials can...........Question 15Select one:a.act as signals over short distances.b.act as signals over long distances.c.prevent and action potentiald.cause an action potential.e.be caused by chemically gated channels
Solution
The incorrect statement is:
b. act as signals over long distances.
Graded potentials cannot act as signals over long distances. They are local changes in membrane potential that occur in varying grades or degrees of magnitude or strength. When a graded potential is strong enough (reaches a certain threshold), it can trigger an action potential. However, graded potentials decrease in strength as they spread out from the point of origin (they are decremental), so they are not capable of traveling long distances like action potentials.
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