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The larger (wider) the axon's diameter, the faster the conduction. This is because resistance to the flow of electrical current is inversely proportional to the cross-sectional area of a conductor (such as a wire or an axon).
page 1020, chapter 48.3, unit seven
Biology AP, Campbell/Reece
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What can affect the speed of the enzyme action?
Temperature and ph level.
How does a myelin sheath affect nerve impulses?
Myelin sheath does several things that affect the speed of an action potential.It acts as an insulator around a neuron axon, thereby focusing the propagation of the action potential along the axis of the axon.The action potential "leaps" from one node of Ranvier (the node in between two myelinated segments) to the next, and to the next, and to the next, and so on, faster than the action potential can propagate as a wave along an unmyelinated axon of the same diameter.The regions along a myelinated axon depolarize locally and successively, thus allowing an action potential to travel along an axon using less energy, which in turn allows the neuron to repolarize more quickly, and thus be ready to conduct the next action potential sooner, thereby increasing the overall speed of information transmission.
What happens to the potential energy as the kinetic of an object increase?
An object's potential energy doesn't depend on its speed. You can do anything you like with the object's speed, and it has no effect on potential energy.
What kinds of chemicals might you add to try to speed up the action of an enzyme or to inhibit its action?
The type of chemicals that speed up the action of an enzyme are called activators. Inhibitors, meanwhile, slow down the action of enzymes.
What is a disadvantage of unmyelinated nervous tissue when compared to myelinated tissue?
Unmyelinated tissue is substantially slower in conducting impulses along the axon. With myelinated axons, the action potential (impulse) jumps from node to node greatly increasing the speed of the impulse.
How does the myelin sheath affect the speed of action potential?
Myelin sheath does several things that affect the speed of an action potential.It acts as an insulator around a neuron axon, thereby focusing the propagation of the action potential along the axis of the axon.The action potential "leaps" from one node of Ranvier (the node in between two myelinated segments) to the next, and to the next, and to the next, and so on, faster than the action potential can propagate as a wave along an unmyelinated axon of the same diameter.The regions along a myelinated axon depolarize locally and successively, thus allowing an action potential to travel along an axon using less energy, which in turn allows the neuron to repolarize more quickly, and thus be ready to conduct the next action potential sooner, thereby increasing the overall speed of information transmission.
What affects nerve impulse speed?
Action potential
Which does not affect the gravitational potential energy of an object?
speed
How does increasing speed affect an objects potential energy?
It doesn't. Increasing speed affects the KINETIC energy.
What can affect the speed of the enzyme action?
Temperature and ph level.
Does speed affect gravitational potential energy of an object?
Does speed 'effect' the gravitational potential energy of an object? No, but gravitational potential energy can be converted into kinetic energy - so the gravitational potential energy can effect the speed. Ep = mgh Energy Potential = mass * 9.81 (gravity) * height Speed / Velocity is absent from that equation.
How does increasing speed affect potential energy?
Increasing the speed will increase the KINETIC energy, not the potential energy. Of course, the potential energy may eventually be converted into kinetic energy, for example if the object moves upwards.
When does a coaster have a large amount of Kinetic Energy and when does it have a large amount of Potential Energy?
The coaster have a large amount of potential energy when it gain height, kinetic energy when it gain speed instead.
How does a myelin sheath affect nerve impulses?
Myelin sheath does several things that affect the speed of an action potential.It acts as an insulator around a neuron axon, thereby focusing the propagation of the action potential along the axis of the axon.The action potential "leaps" from one node of Ranvier (the node in between two myelinated segments) to the next, and to the next, and to the next, and so on, faster than the action potential can propagate as a wave along an unmyelinated axon of the same diameter.The regions along a myelinated axon depolarize locally and successively, thus allowing an action potential to travel along an axon using less energy, which in turn allows the neuron to repolarize more quickly, and thus be ready to conduct the next action potential sooner, thereby increasing the overall speed of information transmission.
How does the camera lens affect action photography?
Light perception and storage speed。
What structure in the neuron helps to speed up the transmission of the action potential?
To speed up transmission of the action potential from where it originates (axon hillock) to where it ends (axon terminal), the action potential propagates by 'saltatory conduction' - and the structure that makes this possible is the insulating layer of myelin sheath that wraps around the axon, arranged in 'nodes' along its length. Technically, it's the gaps between the nodes (nodes of Ranvier) that cause the action to continually propagate and maintain its fast conduction velocity.
What happens to potential energy when the speed is increased?
Potential energy is not affected by speed.
