Biology, 24.03.2020 00:59 samreitz1147
The binding of neurotransmitter to ligand-gated ion channels in the postsynaptic membrane causes these channels to open. As soon as the neurotransmitter is removed from the synaptic cleft, the ligand-gated ion channels close. In the brief time these channels are open, ions are able to diffuse across the postsynaptic membrane down their electrochemical gradient. The result is a postsynaptic potential, a brief change in the membrane potential of the dendrites and cell body of the postsynaptic cell. There are two types of postsynaptic potentials: excitatory postsynaptic potentials (EPSPs) and inhibitory postsynaptic potentials (IPSPs). And EPSP is excitatory because it makes it more likely that the axon of the postsynaptic cell will trigger an action potential. Conversely, an IPSP is inhibitory because it makes it less likely that the axon of the postsynaptic cell will trigger an action potential. Sort the phrases into the appropriate bins depending on which type of postsynaptic potential they describe. If a phrase describes both types of potentials, drag it to the "both" bin.
Answers: 1
Biology, 22.06.2019 09:30, imaboss10986
Consider the following reaction: 2h2 + o2 —> 2h2o a) what are the reactants in this reaction? b) what are the products in this reaction? c) how many molecules of oxygen are used in this reaction?
Answers: 2
Biology, 22.06.2019 10:30, haileyw123
Ras is a g-protein that is activated when a growth factor attaches to egfr. its activation results in the replacement of a gdp molecule with a gtp molecule, thus allowing a signal transduction pathway to be activated. considering the signal pathway illustrated on this page, what is one potential outcome of a mutation in the ras gene that leads to ras protein hyperactivity. be specific.
Answers: 3
The binding of neurotransmitter to ligand-gated ion channels in the postsynaptic membrane causes the...
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