Life Processes - Excretion - Artificial Kidney and Haemodialysis - NCERT Class 10
Life Processes - Excretion Excretion is the biological process by which organisms remove waste products formed due to metabolic activities (like respiration). Accumulation of these wastes can be toxic and harmful, so they must be removed efficiently. It is essential for maintaining the internal environment and ensuring the body's proper functioning. Excretion in Humans Humans have a well-developed excretory system to remove nitrogenous wastes like urea . Human Excretory System – Main Parts Draw the excretory system in human beings from NCERT Textbook science X, page 110, Figure 6.13. 1. Kidneys Bean-shaped organs located on either side of the backbone. Main organs for filtration of blood and formation of urine. Each kidney contains millions of filtering units called nephrons . 2. Ureters Tubes that carry urine from the kidneys to the urinary bladder. 3. Urinary Bladder A muscular sac that stores urine until it is excreted. Urine is stored temporarily bef...