Click here to see more videos: https://alugha.com/FuseSchool In this video we are going to discover how cells take in useful substances and remove waste using three methods of transportation: diffusion, osmosis and then in the second part we will look at active transport. The exchange of materials occurs between cells and their environment, across the cell membrane. To make this exchange as efficient as possible, some organisms have evolved specialised exchange surfaces like the alveoli in the lungs, or root hairs in plants or the nephrons in kidneys. Depending upon what is being exchanged and which direction along the concentration gradient things are travelling will determine whether diffusion, osmosis or active transport will be used. Diffusion is the process in which particles spread out from each other. They move from high concentration to an area of low concentration,down the concentration gradient until they are evenly distributed. Osmosis is very similar to diffusion but just for water. It is the movement of water into or out of a cell. Again, it is the movement from a dilute solution (so high concentration of water molecules) down the concentration gradient to a more concentrated solution - so low concentration of water molecules. The water molecules move across a partially permeable membrane. Watch part 2 to learn about active transport. SUBSCRIBE to the FuseSchool channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT. JOIN our platform and access a deeper Learning Experience at www.fuseschool.org. These videos can be used in a flipped classroom model or as a revision aid. Twitter: https://twitter.com/fuseSchool Friend us: http://www.facebook.com/fuseschool This Open Educational Resource is free of charge, under a Creative Commons License: Attribution-NonCommercial CC BY-NC ( View License Deed: http://creativecommons.org/licenses/by-nc/4.0/ ). You are allowed to download the video for nonprofit, educational use. If you would like to modify the video, please contact us: info@fuseschool.org
The Urinary System - An Introduction | Physiology | Biology | FuseSchool The urinary system is also known as the renal system and consists of the kidneys, the ureters, the bladder and the urethra. Your kidneys are bean shaped organs that are about the same size as a computer mouse. To find your kid
In this video, we are going to look at a food chain and the different roles within that. Click here to see more videos: https://alugha.com/FuseSchool VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on of
In algebra expanding brackets means to remove the brackets. In this video we’ll look at how to expand single brackets 2(3x - 4), and in another video we’ll discover how to expand double brackets (x - 5)(x + 3). Click here to see more videos: https://alugha.com/FuseSchool VISIT us at www.fuseschool
