Developmental Stages in Taste | Sense organs | Class 9 | Biology | Telangana | Khan Academy скачать в хорошем качестве

Developmental Stages in Taste | Sense organs | Class 9 | Biology | Telangana | Khan Academy

https://www.khanacademy.org/science/t... Why does a sour lemon make a baby’s face scrunch up, while the same taste feels mild to adults or elderly people? This video explores how our sense of taste develops and changes throughout life, from infancy to old age. The lesson explains how taste is not limited to the tongue but depends on taste buds, nerves, and the brain working together. It shows why infants have extremely high taste sensitivity as a protective mechanism, and how taste sensitivity gradually decreases with age as the number and efficiency of taste receptors reduce. Through relatable food examples, the video highlights how chewing releases more flavour chemicals and why smell plays a crucial role in fully experiencing taste. By connecting biology with everyday experiences and emotions linked to food, this video helps students understand that taste is a brain-made interpretation, shaped by development, memory, and sensory input." Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! Timestamps: 00:00 — Baby tasting lemon & introduction to taste sensitivity 00:31 — Taste system: tongue, nerves and brain 00:47 — High taste sensitivity in infants 01:27 — How taste actually works 02:16 — Role of brain, memory and experience in taste 02:35 — Decrease in taste sensitivity with age 03:09 — Why chewing improves taste 04:08 — Papillae and taste buds on the tongue 04:49 — Connection between smell and taste 05:24 — Taste changes across different life stages 05:29 — Quick revision & key takeaways 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