What is the difference between Diffusion and Facilitated Diffusion? - ProProfs Discuss
Advertisement

What is the difference between Diffusion and Facilitated Diffusion?

What is the difference between Diffusion and Facilitated Diffusion?

Change Image    Delete

Asked by Juul , Last updated: Dec 21, 2024

+ Answer
Request
Question menu
Vote up Vote down

5 Answers

E.Evelyn

E.Evelyn

E.Evelyn
E.Evelyn

Answered Dec 09, 2020

The main difference between simple diffusion and facilitated diffusion is that simple diffusion occurs without channel or carrier proteins' participation, while facilitated diffusion occurs through channel or carrier proteins. Simple distribution is a process that carries molecules from a region of high concentration to a region of low concentration.

It occurs along the concentration gradient. It does not utilize energy. This procedure can be explained by a simple task where you open a bottle of something, and the smell immediately spreads throughout the room by diffusion. If you placed an ink drop into a cup filled with water, the color will spread evenly in the water. Diffusion not only appears in those situations, but it also arises in the cells as well.

However, occasionally when larger molecules diffuse across the membrane, the membrane's proteins necessitate the diffusion progression. It is suggested to as facilitated diffusion, and it differs from simple diffusion because it involves the membrane proteins, which are channels or carrier proteins. A significant difference between simple diffusion and facilitated diffusion is that simple diffusion can transport only smaller molecules. In comparison, the facilitated diffusion can transport both the small and larger molecules across the cell membrane.

upvote downvote
Reply 

Maxence

Maxence

Have keen interest in writing, traveller by heart.

Maxence
Maxence , Writer, Vienna

Answered Nov 27, 2020

Diffusion refers to the movement of molecules from a region of higher concentration to a region of lower concentration. The primary difference between diffusion and facilitated diffusion is what aids their movement. A type of diffusion known as simple diffusion occurs without using any intermediary molecules. These molecules are known as carrier molecules. Examples are channel proteins. On the other hand, facilitated diffusion is a type of diffusion that occurs with the aid of carrier molecules. In facilitated diffusion, the carrier molecules help to transport ions or molecules across the membrane of a cell. In terms of speed, facilitated diffusion has more speed than simple diffusion. Facilitated diffusion can either occur as a passive or active process. In contrast, simple diffusion is always a passive process. Because of the nature of the two processes, simple diffusion does not require the use of energy. In contrast, facilitated diffusion may require energy supply, and it may not require energy supply.
upvote downvote
Reply 

Brendan

Brendan

Always excited to learn and talk about new topics

Brendan
Brendan , Analyst, NY

Answered Nov 27, 2020

Diffusion refers to the movement of molecules from the region of higher concentration to the region of lower concentration. Diffusion is more or less a natural process; as such, it does not require the input of energy. There are so many factors that can affect the movement of molecules from one gradient to another. These factors include; the solubility of the molecule, external temperature, the surface area of the membrane, etc. Diffusion is an important process during cellular activities. A perfect example of this how molecules exit and enter the cell through the cell membrane. Facilitated diffusion, on the other hand, is similar to simple diffusion and can be referred to as a form of diffusion. Unlike diffusion, facilitated diffusion relies on the use of protein carriers to cause the movement of molecules from one gradient to another. Another difference is that facilitated diffusion requires the input of energy. Saturation can occur in facilitated diffusion but not in simple diffusion.
upvote downvote
Reply 

Jori

Jori

Have keen interest in writing, traveler by heart.

Jori
Jori , Writer, M.A, Zürich

Answered Nov 18, 2020

There are two types of diffusion available. Most people are already familiar with simple diffusion which means that passive transport will make sure that solute will be going through different permeable variables. For facilitated diffusion, there are specific components wherein the solutes will be interacting with other solutes. The driving force for simple diffusion is also different from facilitated diffusion. For simple diffusion, the concentration gradient will be in charge of this. For facilitated diffusion, it is the concentration of solute across the membrane that will be considered as the driving force.
upvote downvote
Reply 

D. Peter

D. Peter

Apart from developing codes, I also spend some time in quality writing.

D. Peter
D. Peter, Software Developer, B.E (Bachelor of Engineering), Mexico

Answered Jul 20, 2020

In diffusion, the movement of the particles will be along the concentration gradient. In facilitated diffusion, you can be sure that the movement of the molecules can go in various directions. It will also be moving towards the opposite side of the concentration gradient. When it comes to the size of the molecules, there may also be some differences. For simple diffusion, except that it will be for the small and non-polar molecules.

In diffusion, the movement of the particles will be along the concentration gradient. In
When you say facilitated diffusion, this will be for the movement of large molecules. There are also different channel proteins that are involved when facilitated diffusion is taking place. The speed of simple diffusion is lower as compared to facilitated diffusion.

upvote downvote
Reply 

Advertisement
Advertisement
Search for Google images Google Image Icon
Select a recommended image
Upload from your computer Loader
Image Preview
Search for Google images Google Image Icon
Select a recommended image
Upload from your computer Loader
Image Preview
Search for Google images Google Image Icon
Select a recommended image
Upload from your computer Loader

Email Sent
We have sent an email to your address "" with instructions to reset your password.