Biology: Cell Transport

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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.


Altair259 says:

My god, i just love your videos… simple yet very informative videos.. god bless you all!

joan daoud says:

I love it..
can I ask a question, mine 16 years cousin have body shape like an athlete even though he dose not play any kind of sport, the same thing his father and his 20 years old brother
and I noticed that when he stands up and begin to walk his right limb become heavy and it takes him about 4-5 seconds to walk normally, it likes duchen picture ( the same thing his father and brother )
I think about duchen
but I know that presents only in early life
what is the diagnosis or syndrome ?
excuse me for my language if it is wrong.
thanks a lot

Travos k says:

This is really useful for revisions thanks.

‫المجد للاسلام‬‎ says:

grate explanation …

Stephanie Espinoza says:

More Biology and Anatomy & Physiology

Ali Zuhair says:

Thumbs up for the new updates, keep good working

ezekiel e says:

These animations are perfect for education; far better than reading a textbook, or even viewing just a picture. We need much more media, like this, in schools to advance our education.

yusuf alhabr says:

Actually this is the first video i dislike on this channel because of poor explanation,weak animation and lost of purpose of the video , however i think you should concentrate on cell membrane composition , features if cell membrane and why all cells have a cell membrane in the first place .

thanks for the effort ,loves your videos keep going

Susu from iraq says:

thank you

宮路次郎 says:


Bokibaki Gameson says:

very good

Ayça Demirci says:

we want so videos about biology

GTX 1060 Benchmarks says:

Top Notch Animations!

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