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Maintaining Water And Nitrogen Balance In The Body (biology Only) (GCSE Biology)

The following is a GCSE Biology test covering 'Maintaining Water And Nitrogen Balance In The Body (biology Only)' from the broader topic Homeostasis And Response. The test is geared towards the AQA exam board style syllabus.
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Why might a person with kidney failure have high blood urea levels and swelling (oedema)?
Which agricultural practice increases soil nitrate levels by adding reactive nitrogen and can contribute to water pollution?
Which type of animal excretes uric acid primarily and why is this advantageous?
What process causes water to move from tissue fluid into blood capillaries across the capillary wall?
What is the immediate effect on urine volume if a person is given a diuretic drug?
A person drinks a large volume of plain water. Which immediate change is expected in blood osmolarity and ADH secretion?
Which organisms live in root nodules of legumes and convert atmospheric nitrogen (N2) into forms plants can use?
Which process in soils converts ammonium ions (NH4+) into nitrate ions (NO3-) that plants can absorb?
What immediate homeostatic response reduces water loss when a person moves from a humid environment into a dry, hot environment?
In dialysis treatment for kidney failure, which process removes excess urea and salts from the patient’s blood?
Which part of the nephron is primarily responsible for selective reabsorption of useful solutes (glucose, amino acids) back into the blood?