How do you explain diffusion?

How do you explain diffusion?

What is diffusion?

1. Diffusion is the movement of a substance from an area of high concentration to an area of low concentration.
2. Diffusion happens in liquids and gases because their particles move randomly from place to place.
3. Diffusion is an important process for living things; it is how substances move in and out of cells.

What is diffusion give an example class 9?

“Diffusion is the movement of molecules from a region of higher concentration to a region of lower concentration down the concentration gradient.”

What is the function of diffusion in the human body?

Diffusion is very important in the body for the movement of substances eg the movement of oxygen from the air into the blood and carbon dioxide out of the blood into the air in the lungs, or the movement of glucose from the blood to the cells.

Why is diffusion important to animals and plants examples?

Diffusion can occur across partialy permeable membranes, such as those surrounding cells. Therefore, diffusion is involved in the movement of important molecules into and out of cells. It is important for the uptake of substances needed by cells, and also the removal of waste products produced by the cells.

What is the importance of diffusion in plant?

“Diffusion is the process of movement of molecules from a region of higher concentration to a region of lower concentration.” Diffusion is a very important process for photosynthesis where carbon dioxide from the stomata diffuses into the leaves and finally into the cells.

What are the roles of osmosis and diffusion among living organism?

Both diffusion and osmosis aim to equalize forces inside cells and organisms as a whole, spreading water, nutrients and necessary chemicals from areas that contain a high concentration to areas that contain a low concentration.

What are the factors affecting the rate of diffusion in plants?

The rate of diffusion is affected by the concentration gradient, membrane permeability, temperature, and pressure. Diffusion takes place as long as there is a difference between the concentrations of a substance across a barrier.

How do plants use diffusion?

Plants get the carbon dioxide they need from the air through their leaves. It moves by diffusion through small holes in the underside of the leaf called stomata . These let carbon dioxide reach the other cells in the leaf, and also let the oxygen produced in photosynthesis leave the leaf easily.

What is the role of diffusion in gas exchange in plants?

Plants obtain the gases they need through their leaves. They require oxygen for respiration and carbon dioxide for photosynthesis. The gases diffuse into the intercellular spaces of the leaf through pores, which are normally on the underside of the leaf – stomata.