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Can someone help me with this? (GCSE Biology)

I'm looking at the mark scheme and for filtration it says (2 marks):

-Substance B is reabsorbed
-Reabsorbed completely

I'm just confused, why does it reabsorb twice? It's filtered, reabsorbed then reabsorbed completely - what?
you get one mark for saying it is reabsorbed and another for saying that it is a complete re-absorption so it is only reabsorbed once
Original post by liaente
I'm looking at the mark scheme and for filtration it says (2 marks):

-Substance B is reabsorbed
-Reabsorbed completely

I'm just confused, why does it reabsorb twice? It's filtered, reabsorbed then reabsorbed completely - what?
you could go with her and make sure she doesn't participate in any drugs or gets harassed ect.
The coiled tubes is the first re-absorption. The second is at the collecting duct.
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liaente
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thank you, good thing it didn't come up in the exam lmfaooo
Original post by newmanb14
you get one mark for saying it is reabsorbed and another for saying that it is a complete re-absorption so it is only reabsorbed once

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