protien molecules

Human Anatomy, Physiology, and Medicine. Anything human!

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protien molecules

Post by lindaspoon » Tue Feb 13, 2007 3:12 pm

Hi there

Could somebody tell me how protein molecules, sucrose molecules and lactose molecules get into urine. I am not certain with regards to this.

I am doing an assignment on diagnosing symptoms for cystitis, diabetes and also why a breastfeeding women would have lactose in her urine sample

thanks in anticipation

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King Cobra
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Post by James » Fri Feb 16, 2007 4:18 pm

Research ultrafiltration

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Post by Darby » Fri Feb 16, 2007 8:37 pm

Sugars are small enough to go through the filters of the kidney - normally they get reabsorbed. Proteins, much larger molecules, should only get through the filters if they are damaged.

I'm not sure, but the question should be, if sucrose and lactose are present, how did they get into the blood in the first place? Sucrose, a disaccharide, shouldn't be absorbed without being broken apart, and lactose, another disaccharide, shouldn't be leaving the mammary glands that are producing them.

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Inland Taipan
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Post by mith » Fri Feb 16, 2007 9:31 pm

bowmans capsule
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;

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