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Why is the amplitude of the compound action potential recorded from the frog sciatic nerve increased when the voltage of the stimulus was increased above the threshold value?
Wiki User
∙ 12y ago
when the voltage of the stimulus is increased above threshold, it can instantly trigger the action potential into a depolarizing state which will rapidly shoot up above the threshold value.
Wiki User
∙ 12y ago
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What is the difference between a compound action potential and a single action potential?
Single action potentials follow the "all or none" rule. That is, if a stimulus is strong enough to depolarize the membrane of the neuron to threshold (~55mV), then an action potential will be fired. Each stimulus that reaches threshold will produce an action potential that is equal in magnitude to every other action potential for the neuron. Compound action potentials do not exhibit this property since they are a bundle of neurons and have different magnitudes of AP's. Thus compound action potentials are graded. That is, the greater the stimulus, the greater the action potential.
Why does Serratia marcescens have a red pigment at room temperature?
Serratia marcescens produces a compound called prodigiosin that binds iron. The production of this pigment is increased at room temperature which gives the bacterial colonies a red pigment.
A substance composed of 2 or more elements?
a compound
How did the compound microscope get its name?
the use of compound lenses.
Is avocado leaf a compound or simple?
It is compound.
What is the difference between a compound action potential and a single action potential?
Single action potentials follow the "all or none" rule. That is, if a stimulus is strong enough to depolarize the membrane of the neuron to threshold (~55mV), then an action potential will be fired. Each stimulus that reaches threshold will produce an action potential that is equal in magnitude to every other action potential for the neuron. Compound action potentials do not exhibit this property since they are a bundle of neurons and have different magnitudes of AP's. Thus compound action potentials are graded. That is, the greater the stimulus, the greater the action potential.
Strong stimuli cause the amplitude of action potentials generated to increase?
Yes. ....Up to a point. There is a threshold the stimulus must surpass before creating a CAP (compound action potential). Anything below this threshold is called subthreshold. Once the stimulus is strong enough cause a CAP it is a stimulus threshold. At this point the CAP will continue to increase as the intensity of the stimulus increases (now termed suprathreshold) until a maximal stimulus causes a maximum response. Any stimulus stronger than the maximal stimulus is called a supramaximal and does not result in any larger a CAP than the maximum response caused by the maximal stimulus. source: http://www.unmc.edu/physiology/Mann/mann12.html
What compound have the hightes ozone deplention potential?
CFC's have highest potential. they react with ozone to deplete it.
What compound becomes less soluble in water as the temperature of the solution is increased?
This compound is the cerium sulfate.
What happens to the potential energy of the resulting compound when a chemical bond forms?
The potential energy is transformed to heat or light energy
How can the elements in an atom can have potential energy?
The chemical bonds between the atoms of the elements in a molecule or ionic compound contain potential energy.
Which compound becomes less soluble in water as the temperature of the solution is increased?
red and pink
How do you re-polish dulled marble doorway threshold?
Felt polishing pad on electric sander, use fine grained polishing compound and enough water to make a paste. Check lapidary supply stores for polishing compound.
Compared with the neutral atoms involved in the formation of an ionic compound the crystal lattice that results is?
The crystal lattice that is formed has a lower potential energy than the reactants. This is because energy is expended to create the ionic compound.
The common ion effect results in a?
Lower solubility of an ionic compound, and an increased amount of precipitate formed
What kind of energy stored within a chemical substance?
The energy stored my molecules of a compound is called "chemical energy"
Energy stored in the bonds between atoms is called what energy?
This is referred to as "potential energy".
