These are the concentrations for the above problem. steps and explanations are a

Question

These are the concentrations for the above problem. steps and explanations are appreciated. thank you!

Na+ Intra: 10mM Extra: 135mM
K+ Intra: 132mM Extra: 4mM
Cl- Intra: 5 mM Extra 114mM
Ca2+ Intra: .0003mM Extra: 1.5mM

neurohanmitter UT is relased at he inect 2one ivtn Belo delerminc: channels and opexs specihe. ligand aked ion, chaunels using the ionic caenrathou uen on page L and jenic pl e a) whch onic species can pass thoug b whether the NT cause an EPsP TPS he ligandl gakel Reshn before NT) mbrane WTH NT piesent- 0.04 1.0 0.5 t o.01 2.0 5.0 0.5 0.01 Cl

Explanation / Answer

Answer a

ionotropic receptors, also known as ligand-activated ion channels, these ion channel proteins open up and allow ions such as Na +, K +, Ca2 + and / or Cl- to pass through the membrane, which responds to the binding of a chemical messenger

Answer b

These excitatory neurotransmitters create a local increase in the permeability of sodium ion channels which result depolarization that is known as excitatory postsynaptic potential (EPSP) because we are exciting the postsynaptic cell.

The inhibitory neurotransmitters cause an opening of the ligand-dependent potassium ion channels which result local hyperpolarization. This is known as Postsynaptic Inhibitory Potential (IPSP) because it is LESS likely to release an action potential.

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