Passive transport & Active Transport
Active and passive transport are biological processes that move oxygen, water and nutrients into cells and remove waste products. Active transport requires chemical energy because it is the movement of biochemicals from areas of lower concentration to areas of higher concentration. On the other hand, passive transport moves biochemicals from areas of high concentration to areas of low concentration; so it does not require energy.
Importance: Active: In eukaryotic cells , amino acids, sugars and lipids need to enter the cell by protein pumps, which require active transport.These items either cannot diffuse or diffuse too slowly for survival. Passive: It maintains equilibrium in the cell. Wastes (carbon dioxide, water, etc.) diffuse out and are excreted; nutrients and oxygen diffuse in to be used by the cell. |
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Pictures Cited: https://www.mitre.org/sites/default/files/images/airplane-collision-avoidance.jpg
http://cleantechnica.com/files/2015/02/electricity.jpg
http://www.tokresource.org/tok_classes/biobiobio/biomenu/membranes/c8.7x17.transport.jpg
http://cx.aos.ask.com/question/aq/1400px-788px/diffusion-science_48d708c07e86710e.jpg
http://xarquon.jcu.cz/edu/zbb/prednasky/06transport/062passive/images/osmosis1.jpg
https://upload.wikimedia.org/wikipedia/commons/6/6b/Blausen_0394_Facilitated_Diffusion.png
http://cosbiology.pbworks.com/f/1248966850/module%207%20-%2002.png
http://cleantechnica.com/files/2015/02/electricity.jpg
http://www.tokresource.org/tok_classes/biobiobio/biomenu/membranes/c8.7x17.transport.jpg
http://cx.aos.ask.com/question/aq/1400px-788px/diffusion-science_48d708c07e86710e.jpg
http://xarquon.jcu.cz/edu/zbb/prednasky/06transport/062passive/images/osmosis1.jpg
https://upload.wikimedia.org/wikipedia/commons/6/6b/Blausen_0394_Facilitated_Diffusion.png
http://cosbiology.pbworks.com/f/1248966850/module%207%20-%2002.png