AdministratorIs diffusion short distance?
distance – if the diffusion distance is small, diffusion happens faster because the particles do not have as far to travel.
What determines diffusion distance?
The greater the difference in concentration, the quicker the rate of diffusion. The higher the temperature, the more kinetic energy the particles will have, so they will move and mix more quickly. The greater the surface area, the faster the rate of diffusion.
What is diffusion in science simple definition?
Diffusion is defined as the movement of individual molecules of a substance through a semipermeable barrier from an area of higher concentration to an area of lower concentration [34].
What is short distance transport?
Diffusion, facilitated diffusion and active transport are means of short distance transport in plants. In short distance transport, the movement is within the cell, across the membranes and from cell to cell. Translocation is movement of substances in bulk over long distances through the vascular tissues .Eg.
What is long distance transport?
Long-distance transport in vascular plants occurs through vascular tissues of xylem and phloem. It allows water and minerals absorbed by roots to be transported to other distant parts such as leaves and food synthesised in leaves to rest of the plant parts for utilisation and storage, such as roots.
Why is the relationship between diffusion distance and time not linear?
So if the density of the solution increases, this means that it becomes harder for the molecule, harder for the molecule to move in the solution. So for all these above reasons mm the diffusion distance, diffusion distance and time do not have linear relationship.
What effect does the diffusion distance have on the rate of diffusion of oxygen?
Distance travelled: The greater the distance that a substance must travel, the slower the rate of diffusion.
What direction does diffusion go in?
The direction of diffusion is said to be ‘down’ or ‘with’ the concentration gradient. Diffusion stops when the concentration of the substance is equal in both areas. This does not mean that the molecules of substance are not moving any more, just that there is no overall movement in one direction.
How do you calculate diffusion?
How much faster will hydrogen diffuse than a gas that has a molecular mass of 10?
What is the difference between diffusion and dissolving?
1.1.1. Diffusion. The term “diffusion” comes from the Latin word diffundere,which means “to spread out.” It is the movement of a fluid from an area of upper concentration to
How does simple diffusion compare with facilitated diffusion?
Temperature. In any system,molecules are moving with a certain amount of kinetic energy.…