Why do sodium ions enter a cell when gated sodium channels open?

Sodium and potassium ions moves against concentration gradient.

Explanation:

Sodium and potassium ions moves against concentration gradient.

Three sodium ions are exported and two potassium ions are imported, for every ATP that pump uses.

The sodium - potassium pumps help to maintain resting potential.

It also help to regulate the cellular volume

It also effects the transport.

It was discovered by Danish scientist Jens Christian in 1957.

He was awarded by Noble prize in 1997.

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

the answer is b & c i believe : )