In a resting state, sodium (Na ) is at a higher concentration outside the cell and potassium (K ) is more concentrated inside the cell. During an action potential, the sodium levels inside the cell. Group of answer choices

The correct answer is: INCREASES

Explanation:

The membrane potential of a cell is defined as the difference in the electric potential between the outside and inside of the cell.

Ions such as sodium (Na⁺) and potassium (K⁺) ions, have a concentration gradient across the cell membrane. In the resting state, the intracellular spaces (inside) has higher concentration of K⁺ ions and the extracellular spaces (outside) has high concentrations of Na⁺ ions.

The rapid changes in the membrane potential of a cell gives rise to the action potential.

During an action potential, the Na⁺ ions move inside the cell into the intracellular spaces, thus increasing the concentration of Na⁺ ions inside the cell.

Therefore, the sodium levels increases inside the cell, during an action potential.

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance