Hi I just need these answers checked! no explanation, just yes its right no its wrong this is the correct answer please!! Its really important to answer ONLY if you are certain of the answers!!!
Q4.5. Why do neurons generate an action potential, instead of simply relying on the opening of ion channels near the stimulus site to transmit information? Because without the action potential, changes in Vm at the stimulus site might not reach the axon terminal O Because without the action potential, the neuron would not depolarize O Because action potentials help the body keep ion concentrations at appropriate levels O Because without the action potential, the neuron would not return to resting potential Q4.6. If calcium ions, each of which has a charge of +2 (Ca 2+ moved OUT OF a neuron, and no other ions were moving, what would be TRUE? O The area outside the neuron would be become more negatively charged. O The concentration of Ca 2+ nside the cell would increase The neuron would become more negative. O The neuron would become more positive. Q4.7. Why does Nat enter the cell during the action potential? O Because the Na channels are open and only let Na move from outside to inside O Because the action potential pulls positive ions into the cell while Na and K+ channels are open O Because NaT channels are open and allow Na ons to move down the length of the axon to produce neurotransmitter at the axon terminal o Because NaT channels are open and there is a higher concentration of Nat outside of the neuron than inside