Watch and track your favorite playlist.
Curated by: Khan Academy India - English (2 videos)
Ever wondered why leaves come in so many shades of green, or why they sometimes flash hints of yellow and orange? Behind that colour lies a secret team of pigments — chlorophyll a, chlorophyll b, xanthophylls, and carotenoids — each with its own favourite “colour” of light to capture. Together, they create a dazzling interplay of absorption peaks and photosynthetic activities. But why do plants have so many pigments? This video provides all the information you need to know about photosynthetic pigments. Timestamps: 00:00 - Introduction 00:24 - How do we perceive the colour of an object? 01:13 - Paper chromatography 01:58 - Different pigments in a leaf 03:28 - Absorption spectrum 05:17 - Action spectrum of photosynthesis 06:00 - Chief photosynthetic pigment 06:55 - Why does the leaf appear green? 08:29 - Where are the pigments present in the leaf? 09:08 - What role do the pigments play in photosynthesis? Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! (https://www.khanacademy.org/science/in-in-class-11-biology-india/x9d1157914247c627:photosynthesis-in-higher-plants) 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 Created by Khan Academy