Maintaining water and nitrogen balance in the human body is essential for survival.
Define the term homeostasis and explain why maintaining stable internal conditions is crucial for the survival of cells.
The diagram below illustrates the process of ultrafiltration in the renal corpuscle, showing the filtration of glucose, plasma proteins, and urea from the blood capillary into the Bowman's capsule space.
Using the diagram and your own biological knowledge, describe the pathways of glucose, plasma proteins, and urea as they pass through the nephron from the blood to the bladder.
A person goes on a long run on a hot day without drinking and becomes dehydrated.
Explain how the secretion of antidiuretic hormone (ADH) regulates the water content of the blood, and describe the resulting characteristics (volume and concentration) of the urine produced.