What Is Diffusion In Biology?

Diffusion is the net movement of molecules from an area where they are at a higher concentration to areas where they are at a lower concentration. The difference in the concentration of a substance between two areas is called the concentration gradient.

What is diffusion in biology simple definition?

Diffusion is the net passive movement of molecules or particles from regions of higher to regions of lower concentration. For diffusion to occur there must be a concentration gradient. However, the movement is inclined towards the area of lower concentration.

What is diffusion in biology example?

Examples of diffusion in living organisms Oxygen and carbon dioxide, dissolved in water, are exchanged by diffusion in the lungs: oxygen moves down a concentration gradient from the air in the alveoli to the blood. carbon dioxide moves down a concentration gradient from the blood to the air in the alveoli.

What is diffusion short answer?

Diffusion is the movement of a substance from an area of high concentration to an area of lower concentration. Diffusion occurs in liquids and gases when their particles collide randomly and spread out. Diffusion is an important process for living things – it is how substances move in and out of cells.

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What diffusion means?

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 the best definition of diffusion?

diffusion, process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration.

What is diffusion in your own words?

Diffusion is defined as a spontaneous net movement of particles down their concentration gradient or in other words from an area with greater concentration to the area with lower concentration without using any energy.

What is diffusion give two examples?

Perfume is sprayed in one part of a room, yet soon it diffuses so that you can smell it everywhere. A drop of food coloring diffuses throughout the water in a glass so that, eventually, the entire glass will be colored. Water diffuses into cooking noodles, making them bigger and softer.

How do you explain diffusion to a child?

Diffusion is a physical process where molecules of a material move from an area of high concentration (where there are many molecules) to an area of low concentration (where there are fewer molecules). Diffusion usually happens in a solution in gas or in a liquid.

What is diffusion in science class 9?

Diffusion- The mixing of a substance with another substance due to the motion or movement of its particles is called diffusion. It is one of the properties of materials. The diffusion of one substance into another substance goes on until a uniform mixture is formed.

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What is diffusion in biology class 9?

Diffusion can be described as the process of movement of molecules from a region of higher concentration to a region of lower concentration allowing the entry and exit of substances in and out of cells.

What is diffusion in botany?

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

What is active diffusion in biology?

Diffusion vs. Active Transport: molecules move across cell membranes by two major processes diffusion or active transport. Diffusion is the movement from a high concentration of molecules to a low concentration of molecules. Either kind of diffusion does not need energy from the cell.

What is diffusion in geography?

In geography, the term diffusion refers to the spread of people, things, ideas, cultural practices, disease, technology, weather, and other factors from place to place. The three main types of this phenomenon are expansion diffusion, stimulus diffusion, and relocation diffusion.

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