Why Most Plants Are Green - video Dailymotion

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00:00Have you ever wondered why most plants are green?

00:02It's a common observation, but the science behind it is fascinating.

00:06From towering trees to tiny mosses, green dominates the plant kingdom.

00:11But what makes this color so prevalent?

00:13The green hue we see everywhere in nature isn't just a coincidence.

00:17It's a fundamental aspect of plant life.

00:20So why green?

00:21The answer lies within the plant's incredible ability to harness energy from the sun.

00:26The key player in this green mystery is a pigment called chlorophyll,

00:29Found in plant cells, chlorophyll is essential for life.

00:33Chlorophyll's primary function is to capture sunlight for photosynthesis,

00:37the process by which plants convert light energy into chemical energy.

00:41Chlorophyll absorbs most wavelengths of light in the visible spectrum,

00:44particularly red and blue light.

00:47This absorption is crucial for photosynthesis,

00:50but it's what chlorophyll asterisk doesn't absorb that gives plants their color.

00:54Instead of absorbing green light, chlorophyll reflects it.

00:57This reflected green light is what our eyes perceive.

01:01Think of it like a green filter.

01:02The plant absorbs all colors except green, which it sends back to our eyes.

01:07Photosynthesis is the process that fuels plant growth and, in turn,

01:12sustains almost all life on Earth.

01:14The absorbed red and blue light provides the energy needed to convert carbon dioxide

01:18and water into glucose and oxygen.

01:21While plants reflect green light, it's not wasted energy.

01:24This reflection helps regulate the plant's temperature and prevents overheating.

01:29While most plants are green, you've probably noticed some aren't.

01:33This brings us to other fascinating pigments.

01:35Other pigments like carotenoids, yellow, orange, and anthocyanins, red, purple,

01:41are also present in plants.

01:43In autumn, as chlorophyll breaks down, these other pigments become visible,

01:47giving us the beautiful fall colors.

01:49So the next time you see a lush green landscape, remember the incredible science at play.

01:55The green color of plants is a visual testament to chlorophyll's efficiency

01:58in capturing sunlight for life-sustaining processes.

02:02Without this green marvel, our planet would be a very different

02:05and much less vibrant place.

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