Transport In Cells: Active Transport | Cells | Biology | FuseSchool
781.4 هزار بار بازدید -
8 سال پیش
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Transport In Cells: Active Transport
Transport In Cells: Active Transport | Cells | Biology | 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. You can watch it here: Transport in Cells: Diffusion and Osm...
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.
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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. You can watch it here: Transport in Cells: Diffusion and Osm...
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.
SUPPORT US ON PATREON
Patreon: fuseschool
SUBSCRIBE to the FuseSchool YouTube 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.
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 offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you.
These videos can be used in a flipped classroom model or as a revision aid.
Find all of our Chemistry videos here: CHEMISTRY
Find all of our Biology videos here: BIOLOGY
Find all of our Physics videos here: PHYSICS
Find all of our Maths videos here: MATHS
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Facebook: Facebook: fuseschool
Twitter: Twitter: fuseSchool
Access a deeper Learning Experience in the FuseSchool platform and app: www.fuseschool.org
Follow us: fuseschool
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This is an Open Educational Resource. If you would like to use the video, please contact us: [email protected]
8 سال پیش
در تاریخ 1395/06/01 منتشر شده
است.
781,464
بـار بازدید شده