Biology: Cell Transport



How do things move across the cell membrane, either in or out? This animation shows two broad categories of how things pass into or out of a cell: passive transport and active transport.

Passive transport is automatic; no input of energy is required. For example, diffusion is a passive process in which particles move either into or out of the cell from an area of higher concentration to an area of lower concentration.

Active transport, on the other hand, is when particles move from an area of lower concentration to an area of higher concentration. Because particles are moving against the concentration gradient, energy is required.

After viewing this video, the viewer will be able to:
• List the two broad categories of cell transport
• Describe the difference between active and passive transport.

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Watch other Nucleus Biology videos:
– Cell Structure: https://youtu.be/URUJD5NEXC8
– Controlled Experiments: https://youtu.be/D3ZB2RTylR4
– Independent vs. Dependent Variables: https://youtu.be/nqj0rJEf3Ew

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Learn more about the company that created this video: http://www.nucleusmedicalmedia.com/

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33 thoughts on “Biology: Cell Transport”

  1. i have a question regarding the cell transportation.. am i just want to ask .."how mitochondria transport ATP to the carrier protein in order for the molecule get outside and inside of the cell membrane from low to high concentration??

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  2. 제가 영어 잘못해서 그런데 그 이영상에 오류가 있는것 같습니다 1분 5초부터 막단백질을 통해 세포가 움직이려면 에너지가 필요하지 않는걸로 아는데…

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