What term describes the movement of molecules from an area of high concentration to and area of low concentration?

What term describes the movement of molecules from an area of high concentration to and area of low concentration?

Diffusion is the movement of particles move from an area of high concentration to an area of low concentration until equilibrium is reached. Diffusion explains the net flux of molecules from a region of higher concentration to one of lower concentration.

What is the movement of molecules from high to low concentration?

Diffusion: Diffusion is the movement of particles from an area of higher concentration to lower concentration. The overall effect is to equalize concentration throughout the medium.

What kind of molecules move in diffusion?

Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.

What are the factors affecting the movement of the particles?

Physical aspects, such as temperature of the system, can affect how fast the particles are moving. At higher temperature, particles move faster. Chemical factors, such as concentration differences (gradients) and electrical charges, can influence how much, and how fast, the substances will move.

What happens when the concentration of molecules is the same on both sides?

During diffusion, when the concentration of molecules on both sides of a membrane is the same, the molecules will: continue to move across the membrane in both directions.

What type of molecules are too big to cross the membrane on their own give an example?

Glucose molecules are too big to diffuse through the cell membrane easily, so they are moved across the membrane through gated channels.

How do molecules move in the process of diffusion?

In the process of diffusion, a substance tends to move from an area of high concentration to an area of low concentration until its concentration becomes equal throughout a space.

How does temperature affect the movement of particles?

With an increase in temperature, the particles move faster as they gain kinetic energy, resulting in increased collision rates and an increased rate of diffusion. With an increase in temperature, the particles gain kinetic energy and vibrate faster and more strongly.

When the concentration of a substance is the same on both sides of a membrane The substance is?

If the substance can cross the cell membrane, its particles will tend to move toward the area where it is less concentrated until equilibrium is reached. At that point, the concentration of the substance on both sides of the cell membrane will be the same.

What would happen when the concentration of water becomes the same on both sides of a membrane?

The concentration on both sides of the membrane will eventually reach DYNAMIC EQUILIBRIUM. The concentration of solutes will be the same on both sides of the membrane as water continues to move back and forth.

What 3 molecules Cannot pass through the membrane?

The plasma membrane is selectively permeable; hydrophobic molecules and small polar molecules can diffuse through the lipid layer, but ions and large polar molecules cannot.

What is movement of molecules from areas of high?

What is movement of molecules from areas of high concentration to areas of low concentration? Diffusion is the movement of particles from an area of high concentration to an area of low concentration–not to be confused with osmosis, which is the movement of water through a semi-permeable membrane.

How are large molecules move down the concentration gradient?

Large molecules such as glucose move down the concentration gradient with the help of proteins facilitated diffusion Diffusion of water molecules through the cell membrane down (with) the concentration gradient osmosis Movement of substances against the concentration gradient; requires energy

How are nonpolar molecules transported in a cell?

Nonpolar molecules (ex: CO2 & O2) move across the lipid bilayer down the concentration gradient diffusion Large molecules such as glucose move down the concentration gradient with the help of proteins facilitated diffusion Diffusion of water molecules through the cell membrane down (with) the concentration gradient osmosis

What kind of molecules can pass through a menbrane by diffusion?

T or F: Simple diffusion allows only certain molecules to pass through a membrane. true What kind of molecules can pass directly through a menbrane by diffusion? molecules that can dissolve in lipids How can very small molecules that are not soluble in lipids diffuse across a mebrane?