Saturday, 23 February 2013

3.10 describe the role of the placenta in the nutrition of the developing embryo

The embryo can't breath, digest or excrete.
Blood vessels inside the placenta can absorb the digested food molecules and oxygen that the embryo needs to survive. Waste products will be taken out of the embryo and put back into the mothers blood stream for her to excrete.

6 comments:

  1. from mother’s blood;
    diffusion / high conc. to low conc.;
    large surface area / thin / eq;
    **umbilical cord; ***

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  2. hi this is anuj patel and i want to thank you for making this. safe yeh

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  3. The Biology Syllabus has changed…

    Here is a New blog for the 2017 Syllabus:

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

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  4. more at

    http://igcse-biology-notes.blogspot.hk/2017/06/310-describe-role-of-placenta-in.html

    ReplyDelete