Select all the correct answers for the question that follows. The resting membrane potential of an excitable cell demonstrates a negative inner face because: the net flow of sodium ions is out of the cell through leakage channels sodium and potassium ion diffuse across the cell membrane according to their electrochemical gradients the net flow of potassium ions is out of the cell through leakage channels large negatively charged protein anions get trapped in the excitable cell

Fill in the blank:  As a result of an additive phenomenon called _______________________, the threshold potential of a membranemay be reached.

Place the following events in chronological order from 1-8: Nat enters the cell, and depolarization occurs to approximately +30 mV. The voltage across the cell membrane is -70 mV, the resting membrane potential. Upon reaching the peak of the action potential, the VG Nat channels are inactivated by the closing of their inactivation gate and the activation gate of each VG K channel opens. VG K channels close by the closing of their activation gate, and the resting membrane potential is gradually restored. An excitatory post-synaptic potential depolarizes the membrane to threshold and the activation gate of VG Nat channels open. Upon returning to the resting membrane potential, VG Na channels are reset by opening of the inactivation gate and the closing of the activation gate. VG K+ channels are slow to close, resulting in an excess of K* efflux and hyperpolarization. Depolarization occurs as K+ flows out of the cell.

Correct answer: Ligand-gated ion channel don’t open until the neurotransmitter diffuses across the synapse and binds to the receptor, The calcium channels are blocked in the presynaptic cells, It takes time for the vesicular exocytosis to occur Please explain why each of the correct answer choices are correct. Thank you.

All of the following are true for neurons EXCEPT neurons must produce many proteins neurons are electrically excitable cells neurons have a relatively high consumption of oxygen neurons undergo mitosis

Can you please help out with the right answer. Thanks

Answer to question 6 please

A change in membrane potential which is due to ion influx or efflux in a single region with the ions then diffusing away from that region is called a(n) ______

There are differences in Na+, K+, and Cl- ion concentrations across the membrane.  Knowing that ions like to flow down their respective concentration gradients explain how the movement of Cl- and K+ ions can result in membrane hyperpolarization.

A resting cell's membrane is more permeable to K+ simply because: K has a higher atomic number than Na. The Na+/K+ ATPase only works in response to a stimulus. There are more voltage-gated K+ channels than voltage-gated Na+ channels in the cell membrane. There are more K+ leaky channels than Na+ leaky channels in the cell membrane.