Final answer:
Proteinuria is a condition caused by damage to the glomerulus, resulting in the presence of protein in the urine. It is a biology topic in high school level.
Step-by-step explanation:
Proteinuria is a condition caused by damage to the glomerulus, a part of the kidney responsible for filtering blood. When the glomerulus is damaged, it allows proteins such as albumin to leak into the urine. This results in the presence of protein in the urine. Other symptoms of this condition may include swelling, low serum albumin, and high cholesterol levels.