Fill in the blank.

A/An solution occurs when the solute concentration outside of the cell is higher than the solute concentration inside the cell
Most cells have an electrical potential difference of between –40 and millivolts.
is a determining force in water movement, and causes water to move from areas of high water concentration to low water concentration.
In most cells, there are more molecules inside the cell and more sodium molecules outside the cell.
A/An exists when different concentrations of a substance exist on either side of a membrane.

1: hypertonic

2 -80 millivolts

3 osmosis or osmotic pressure

4 potassium

5. concentration gradient

6 a chemical gradient occurs when more of one molecule is on one side of a membrane, and more of another molecule is on the opposing side. An electrical gradient occurs when more positive or negative ions are on either side of a cell membrane potential, or voltage difference.

7 The combination of a chemical and electrical gradient can result in an electrochemical gradient that drives the movement of ions and molecules across a membrane.

8 an electrochemical membrane can have opposing components gradient.

Explanation:

Got off pennfoster

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.