Why Do Leaves Change Colour?

The video explains how leaves change color due to different pigments: chlorophyll, carotene, and anthocyanins. Chlorophyll, responsible for green color, is unstable and breaks down in sunlight, requiring constant renewal. In autumn, chlorophyll production stops, revealing carotene, which gives leaves an orange-yellow hue. Anthocyanins, formed from sugars and proteins, can make leaves appear red. The dominant pigment determines the leaf color, which varies by tree and season.

Describe the process of photosynthesis and its relation to chlorophyll.

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How do the amounts of different pigments in leaves affect their color throughout the year?

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