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Introduction to passive and active transport | High school biology | Khan Academy

November 17, 2019


  • Reply Alisa Guadarroma November 29, 2017 at 9:57 pm

    Great explanation!!

  • Reply Safir November 29, 2017 at 11:31 pm

    I already knew this but the revision helps! Sal, you are crazy great

  • Reply al-Haifawi November 30, 2017 at 6:47 am

    It's almost as if you are speaking building physics and moisture transport in the built environment/ building materials. In my field, when we talk about moisture transport we work with the concepts of diffusion, convection and capillary transport. Nice to see something similiar in biology.

    may GOD reward you for this

  • Reply Rushil Kasetty December 3, 2017 at 1:10 pm

    This is a great video! I noticed that it's been covered several times by this channel already, though. Do you guys think you could make a video on Molecular orbital theory in organic chemistry? I noticed that that topic is missing from the organic chemistry lessons, and I'd like to learn it!

  • Reply Jeremy Ypertty June 13, 2018 at 1:40 pm

    I hate biology

  • Reply Hi Bye July 4, 2018 at 8:10 am

    This guy is mad. Can teach any bloody subject

  • Reply abdalrahman aldeep August 24, 2018 at 11:09 am

    Then, what is the difference between passive transport and diffusion?

  • Reply Sumon Hossen September 8, 2018 at 3:30 pm

    I cant solve this sentance active to passive voice please solve me for me.

    Tell him to go to call him a doctor. ( passive)

    the idle only corse their faith ( passive)

  • Reply M Mize September 24, 2018 at 10:57 pm

    Don't take a nap in a boat

  • Reply evyoz October 2, 2018 at 2:02 am

    thank you so much I understand now (: my bio teacher needs to get on ur level tbh

  • Reply HeyItsAli October 11, 2018 at 2:47 am

    your videos are so helpful, god bless your soul

  • Reply Haidar Hussain October 17, 2018 at 12:58 pm

    Glucose molecules in low concentration in the kidney have to be moved into the
    bloodstream, where there is a higher concentration of glucose.
    The process responsible for this action is…

    Can someone give me an answer and explanation… Answer is active transport.

    But why…

  • Reply Emma Nguyen November 16, 2018 at 2:53 am

    Why am I learning this in Earth Science

  • Reply Angelin Binoy April 9, 2019 at 9:00 pm

    I have my bio finals (for my first year of university) in two days and now I finally get it. Thanks guys!

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