The effect of concentration gradient on

Osmosis is the passive movement of water from an area of higher concentration to an area of lower concentration, usually across a membrane Thorpe - The Effect of Concentration Gradient on Osmosis Essay introduction. Tonicity is the ability of a solution surrounding a cell to gain or lose water Reece There are many factors that affect the rate of osmosis.

The effect of concentration gradient on

Full Answer Diffusion is the movement of atoms or particles from an area of high concentration to an area of lower concentration.

Associated Data

This is also referred to as a change in concentration gradient. Concentration gradient is essentially the difference of molecule concentration within and outside of the cell. This means that the concentration gradient is positive.

A concentration gradient is considered negative when there are more molecules within the cell. Particle Size and Diffusion Rate Particle size is one factor that affects the rate of diffusion.

The effect of concentration gradient on

At a given temperature, smaller particles will move more quickly than larger particles. A larger particle has less inertia, which means that it produces diffusion at a slower rate.

However, temperature and particle size are directly proportional. As temperature rises, the rate of diffusion increases. Particles pick up speed at higher temperatures because more energy is available for them to use.

Another explanation for this process is that temperature increases kinetic energy, which triggers the molecule to move at a faster pace. This, in turn, increases diffusion rate. Influence of Viscosity on Diffusion Rate Another factor that affects diffusion rate is viscosity.

In a more viscous substance, which is one that is thicker, particles have difficulty moving.

The effect of concentration gradient on

Therefore, they move at lower speeds than in a less viscous substance. For example, particles move more slowly in a solid substance like butter than in a less dense substance like water. How Distance Affects Diffusion Rate Variations in the distance between two points of diffusion also influences diffusion rate.

When particles are closer together, there is less distance that molecules have to cover. This means that they have a higher diffusion rate.

When particles are farther away, molecules take a longer time to travel between them, which results in a lower diffusion rate. Diffusion through cellular membranes can take place with several substances.

Osmotic (Hydrostatic) Pressure

Ions, water and molecules that are required for basic cell functions can move in and out of cells through diffusion.Concentration gradient is essentially the difference of molecule concentration within and outside of the cell.

Rate of diffusion is directly proportional to the concentration gradient, which means that if molecular concentration is higher outside of the cell's walls, molecules will move into the cell. So, the concentration gradient was at its maximum, for this reason the highest rate of osmosis took place at this concentration.

Still, as the sucrose concentration altered to lesser values the loss in mass from the potato also decreased. Chemical gardens demonstrate the effect of osmosis in inorganic chemistry.

Factors Osmotic pressure. As mentioned before, osmosis may be opposed by increasing the pressure in the region of high solute concentration with respect to that in the low solute concentration region. The osmotic gradient is the difference in concentration .

The rate at which molecules diffuse across the cell membrane is directly proportional to the concentration gradient. This applies to simple diffusion, which is governed by Fick's law.

When the concentration gradient is heavier outside the cell, substances diffuse into the cell where it is lower. The effect of concentration gradients on the polarizabilities of chemical systems of mixed composition is examined theoretically.

It is found that the first-, second- and third-order polarizabilities all exhibit linear dependences on concentration gradient but nonlinear dependences on dielectric gradient. The osmotic gradient is the difference in concentration between two solutions on either side of a semipermeable membrane, and is used to tell the difference in percentages of the concentration of a specific particle dissolved in a solution.

How does concentration gradient affect diffusion