Waste products of metabolism | Excretion | Class 10 | Life Science | Telangana! Khan Academy

https://www.khanacademy.org/science/t... In this video, we connect a simple everyday example — cleaning a room — to understand how the human body manages waste. You’ll learn how metabolism, the set of life-sustaining chemical reactions in our body, produces waste products such as carbon dioxide, urea, excess salts, and water. The lesson explains why these wastes must be removed to prevent toxicity and maintain a stable internal environment called homeostasis. The video also explores how different organs work together in excretion — with the lungs removing carbon dioxide and the kidneys filtering blood to form urine. Through clear analogies and real-life connections, this lesson highlights why waste removal is not just a routine process but a vital requirement for survival. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! Timestamps: 00:00 — Room cleaning analogy: why waste removal matters 00:36 — What is metabolism 01:07 — Types of metabolic wastes 01:52 — Formation of urea from ammonia 02:18 — Why waste buildup is harmful 02:59 — What is homeostasis 03:13 — Organs involved in waste removal 03:51 — What is excretion 04:00 — Detecting wastes through tests 04:30 — Recap: metabolism, waste, and balance 05:04 — Role of lungs and kidneys 05:23 — Final takeaway: excretion is essential Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate