Friday, 22 February 2013

2.50 understand the need for a transport system in multicellular organisms

Multicellular organisms have a small surface area to volume ratio and the distance for diffusion would be very large and so very slow. This wouldn't support the organism; so they have developed transport systems, like the ventilation system and the circulatory system which speed up the process of getting necessary molecules in and out of the body enough to support themselves.

14 comments:

  1. Thanks for doing this, really appreciate it

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    1. Dude this hannah girls XD, she's so fucking insane, has basically saved me for my gcses xDDDDDDDDDDDDD

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    2. Dude this hannah girls XD, she's so fucking insane, has basically saved me for my gcses xDDDDDDDDDDDDD

      Delete
  2. Literally a life saver, thank you!

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  3. Are you sure it "speeds up diffusion"?

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    1. Yeah I guesse you're right it doesn't really speed up diffusion, it more just speeds up the process of getting things in and out of the body.. I'll try rephrase it haha :)

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  4. Sneaky bio revision amar

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  5. Thank you so much. My GCSEs are next year and I'm quite stressed, this website has been extremely helpful.

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  6. The Biology Syllabus has changed.... New Syllabus Blog:

    http://igcse-biology-2017.blogspot.hk

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  7. more at

    http://igcse-biology-notes.blogspot.hk/2017/06/250-understand-need-for-transport.html

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