Click here to see more videos: https://alugha.com/FuseSchool In the first part of this video we looked at diffusion to move gases and osmosis for the movement of water, from high concentration to low concentration down their concentration gradient. Active transport works in the opposite direction; it moves molecules from a low concentration to a high concentration, against the concentration gradient. This is the opposite of diffusion and osmosis. And because it is not the natural direction, energy from is required to make this work. Active transport is carried out by protein carriers. The protein carriers are within the cell membrane and they have a specific binding site for the exact molecule they are transporting. The substance binds to the protein carrier on the side that it is at low concentration. And using energy from respiration, the protein carrier releases the substance on the other side of the membrane - where it is already at a higher concentration. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT. JOIN our platform at www.fuseschool.org These videos can be used in a flipped classroom model or as a revision aid. Twitter: https://twitter.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 study of finches led to the development of one of the most important scientific theories of all time. In December 1831 a naturalist called Charles Darwin boarded the HMS Beagle, bound on a surveying voyage of South America. Whilst the ship and crew carried out coastline surveys, Darwin was fre
Learn the basics about halogenation within the alkanes and alkenes part of organic chemistry. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT. JOIN our platform at www.fuseschool.org This video is part of 'Chemistry for
The Mean | Statistics & Probability Bob is training for a race and is timing himself to check he’s getting faster. Times (in minutes): 51 48 45 44 47 50 44 47 45 43 49 44 43 44 His times are a bit inconsistent. He wants to find his average, to get a better understanding of what time he is likel
