MYP 1 Biology · Passing Life On · Updated

Photosynthesis

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How do you actually make food from sunlight?

You might think plants just sit there, but every green leaf is basically a tiny solar panel turning sunlight into sugar. When you see a plant soaking up the sun, it's using photosynthesis to power its own food production. This process happens inside your plant's cells, in special compartments called chloroplasts.

The magic ingredient is chlorophyll, a pigment that grabs energy from sunlight. That energy is then used to combine carbon dioxide (from the air) and water (from the soil) into glucose (a type of sugar) and oxygen. When you breathe in oxygen, you're actually using a byproduct of photosynthesis!

Plants stash glucose for energy, growth, and repairs. Without this process, your snacks, your oxygen, and basically your entire food chain would vanish.

Definition

When you see a plant making its own food using sunlight, water, and carbon dioxide, that's called <b>photosynthesis</b>,a process that transforms light energy into chemical energy stored in glucose, releasing oxygen as a bonus.

Note

Ever wondered why leaves look green? Chlorophyll reflects green light instead of absorbing it, so that's the color you see bouncing back to your eyes.

How do you actually make food from sunlight?
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