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What is the voltage change at the receptor site of a neuron?
postsynaptic potential (PSP)
What must occur for the potential energy of fossiL fuel to change into other forms of energy?
"Combustion" must occur before the potential energy can be released from fossil fuels... examples of fossil fuel... gasoline and coal, both are "burned" to create their energy
What is the energy conversion that occur when coal is formed and then burned to produce thermal energy?
Conversion from chemical potential energy to thermal energy.
What types of energy occur when a box is picked up and placed on a shelf?
Picking up the box gives it kinetic energy. When the box is sitting on the shelf, it has potential energy.
What are some potential effects of being electrocuted?
The most obvious injuries that can occur are burns and convulsions. Memory loss can also occur. More serious problems could be permanent scar or damage to internal organs. The most serious effect of being electrocuted is death.
Inhibitory postsynaptic potential is associated with what?
An inhibitory postsynaptic potential (IPSP) is a kind of synaptic potential that makes a postsynaptic neuron less likely to generate an action potential.
What type of membrane potential is generated at the synapse on the postsynaptic membrane?
It can be an excitatory postsynaptic potential (EPSP) or an inhibitory postsynaptic potential (IPSP), depending on the synapse. The EPSP depolarizes the membrane, while the IPSP hyperpolarizes it.
What is hyperpolarization of a dendrite by a neurotransmitter called?
According to Biologists, the hyper polarization of a dendrite by a neurotransmitter is known as an inhibitory postsynaptic potential (IPSP).
What will occur when an excitatory postsynaptic potential EPSP is being generated on the dendritic membrane?
A single type of channel will open, permitting simultaneous flow of sodium and potassium.
Are graded potentials the same as local potentials?
Postsynaptic potentials are changes in the membrane potential of the postsynaptic terminal of a chemical synapse. Graded potentials are changes in membrane potential that vary in size, as opposed to being all-or-none, and are not postsynaptic potentials.
How long does an excitatory postsynaptic potential lasts?
About 15 milliseconds
Where do neurotransmitters that bind the postsynaptic membrane generate?
action potential
Is a postsynaptic potential a graded potential that is the result if a neurotransmitter released into the synapse between two neurons?
Yes it is true that graded potential can be called postsynaptic potentials. When a sensory neuron is excited by some form of energy, the resulting graded potential is called generator potential.
Does a neuron become depolarized during an inhibitory postsynaptic potential?
False
What is the voltage change at the receptor site of a neuron?
postsynaptic potential (PSP)
What is the difference between EPSP and an IPSP?
An EPSP is an excitatory postsynaptic potential, which represent input coming from excitatory cells, whereas an inhibitory postsynaptic potential represents input driven by inhibitory presynaptic cells.
Which membrane potential results in depolarization without a nerve impulse being generated?
excitatory postsynaptic potential
