Facilitated diffusion is necessary when cell membranes prevents a substance from diffusing on its own.
Facilitated diffusion is a type of passive transport that involves movement of solute materials down the concentration gradient.
Further Explanation;
Transport in living organisms
- Plants and animals use various processes to transport materials from one point to another.
- There are classified as either passive transport or active transport.
Passive transport
- It is a type of transport that does not involve the use of energy to aid movement of substances in living organisms.
- Passive transport involves free movement of substances and through special types of transporters or carriers.
- Types of passive transport includes; simple diffusion, facilitated diffusion, osmosis, and mass flow among others.
Active transport
- It is a type of transport in living organisms that involves movement of substances against a concentration gradient and involves use of energy in form of ATP to aid transport of substances.
Types of passive transport
Facilitated diffusion
- Facilitated diffusion is a type of passive transport which involves the diffusion of solutes by use of transport proteins in the plasma membrane.
- Facilitated diffusion uses transport proteins to transport solutes down their concentration gradient.
Osmosis
- Osmosis is a special diffusion that involves the movement of water molecules from a region where they are highly concentrated to a region where they are lowly concentrated through a semipermeable membrane.
- It may also refer to the movement of water molecules from a region of low particle concentration to a region of a high particle concentration.
Diffusion
- Diffusion is a type of passive transport that involves movement of particles from a region of high concentration to a region of low concentration.
- Diffusion involves movement of molecules of substances other than water.
Keywords: Passive transport, Diffusion, Osmosis, Passive transport
Learn more about:
- Passive transport; https://brainly.com/question/6873289
- Active transport: brainly.com/question/11907495
- Osmosis: brainly.com/question/6032182
- Diffusion: brainly.com/question/7068868
Level: High school
Subject: Biology
Topic: Transport in living organisms
Sub-topic: Passive transport
