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.

Respuesta :

Answer: 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

  • A hypotonic 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 -70 millivolts.
  • Osmotic pressure or flow 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 water molecules inside the cell and more sodium molecules outside the cell
  • A concentration gradient exists when different concentrations of a substance exist on either side of a membrane.

An electrical gradient occurs when more positive or negative ions are on either side of a cell membrane.

  • Hypertonic solutions are the solution where solute concentration outside of the cell is higher than the solute concentration inside the cell.
  • osmotic pressure is the force with which a solvent moves across a semipermeable membrane from a higher to a lower concentration.
  • the membrane potential is in the range of –40 mV to –70 mV.
  • Water concentration inside the cell is high and more solute or salt concentration outside the cells.
  • Concentration gradient is the difference between the internal and external sides of a membrane

Thus, the correct fill in the blanks are:

  • hypotonic solution
  • –70 mV
  • Osmotic pressure
  • water molecules
  • Concentration gradient

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