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Differentiate graded potentials and action potentials. Select all that apply.Multiple select question.Summation of graded potentials can not occur but summation of action potentials are possible.The magnitude of graded potentials is variable and action potentials are all-or-none.Graded potentials are conducted in a decremental fashion and action potentials are conducted with a constant magnitude.

Question

Differentiate graded potentials and action potentials. Select all that apply.Multiple select question.Summation of graded potentials can not occur but summation of action potentials are possible.The magnitude of graded potentials is variable and action potentials are all-or-none.Graded potentials are conducted in a decremental fashion and action potentials are conducted with a constant magnitude.

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Solution

  1. Summation of graded potentials can not occur but summation of action potentials are possible: This statement is incorrect. Summation can occur with graded potentials, where multiple small potentials can add up to create a larger overall change in membrane potential. However, action potentials are all-or-none events that do not summate.

  2. The magnitude of graded potentials is variable and action potentials are all-or-none: This statement is correct. Graded potentials can vary in magnitude, depending on the strength of the stimulus. On the other hand, action potentials are all-or-none, meaning they always have the same magnitude regardless of the strength of the stimulus.

  3. Graded potentials are conducted in a decremental fashion and action potentials are conducted with a constant magnitude: This statement is correct. Graded potentials decrease in strength as they move away from the point of stimulation, this is known as decremental conduction. In contrast, action potentials are conducted without decreasing in strength, maintaining a constant magnitude as they propagate along the neuron.

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Similar Questions

Compare the differences between graded and action potentials

Which of the following does NOT describe graded potentials?They are changes to the membrane potential.They vary with the intensity of the stimulus.They are local changes.They are always depolarizing.

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

Which is a characteristic of an action potential? They are graded. They are decremental. They propagate in one direction. The are reversible.

Which of the following is an example of spatial summation?Question 28Select one:a.Two stimuli from two sources produce graded potentials on the same neuron at the same time such that the two potentials sum.b.Two rapid stimuli from the same source produce graded potentials on the neuron that sum.c.An action potential occurs at the same time as a graded potential, and they sum.d.A neuron sends out information through collaterals to several target cells.e.Two action potentials occur at the same time and sum.

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