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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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In dialysis treatment for kidney failure, which process removes excess urea and salts from the patient’s blood?
Which type of animal excretes uric acid primarily and why is this advantageous?
In the context of osmoregulation, what does “hypotonic” mean for the fluid surrounding a cell?
Which part of the nephron is primarily responsible for selective reabsorption of useful solutes (glucose, amino acids) back into the blood?
Which change to the collecting duct increases water reabsorption into the blood?
Which structure in the kidney is the basic functional unit that filters blood to form urine?
Which microbial process in agricultural soils returns nitrogen gas (N2) to the atmosphere, reducing soil nitrate availability?
Why does drinking salt water tend to make a person more dehydrated?
What is ammonification in the nitrogen cycle?
What process causes water to move from tissue fluid into blood capillaries across the capillary wall?
Which cell type in the nephron senses blood osmolarity and triggers ADH release via the brain?