biology·NCERT Class 11·Excretory Products & Their Elimination
Nephron & Urine Formation
Medium+80 XP
Each kidney has about 1 million nephrons, each one filtering, reabsorbing, and concentrating — all to keep your blood chemistry precise. Follow a drop of filtrate from glomerulus to collecting duct.
›Filtration (glomerulus): blood filtered under pressure; ultrafiltrate formed.
›Reabsorption: PCT (glucose, amino acids, Na⁺); Loop of Henle (counter-current concentrating).