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Biology

CAIE2022

7 ( i) Describe the relationship shown in F ig. 5 .2. ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ...................................................................................................................................... [2] ( ii) Use F ig. 5 .2 to estimate the concentration of creatinine in the blood that indicates a normal G F R. concentration = .......................................................... [2] ( iii) Suggest tw o reasons why the G F R of a person might decrease. ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ...................................................................................................................................... [2] [Total: 12] © UCLES 2019 97 00/04/SP/22 [Turn over PMT

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