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,
<h3>Learn more about:  </h3>
Level: High school  
Subject: Biology
Topic: Transport in living organisms
Sub-topic: Passive transport