Active transport is the homeostatic process that requires energy to move particles across the plasma membrane.
<h2>Further Explanation </h2><h3>Transport in living organisms</h3>
- Plants and animals use various processes to transport materials from one point to another.
- There are classified as either passive transport or active transport.
<h3>Active transport </h3>
- It is a type of transport in living organisms that involves movement of substances against a concentration gradient through the plasma membrane.
- It involves use of energy in form of ATP to aid transport of substances.
<h3>Passive transport</h3>
- 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.
<h3>Types of passive transport</h3><h3>Facilitated diffusion</h3>
- 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.
<h3>Osmosis </h3>
- 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.
<h3>Diffusion </h3>
- 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: Active transport, Passive transport, Diffusion, Osmosis,
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Level: High school
Subject: Biology
Topic: Transport in living organisms
Sub-topic: Passive transport