BiologyYears 12–13Photosynthesis

Photosynthesis

Understand the light-dependent and light-independent reactions, limiting factors and chloroplast structure

What you'll learn

  1. 1

    Imagine a 🌱 seed in the soil. It needs food to grow! But plants don't eat like we do — they make their own food using sunlight, water, and air.

  2. 2

    A plant uses its leaves like solar panels ☀️. It takes in CO₂ from the air through tiny holes, and water from the roots 🌊. With sunlight, it turns them into sugar (food) and oxygen!

  3. 3

    What does a plant need for photosynthesis?

  4. 4

    Let's write the word equation for photosynthesis together:

  5. 5

    Drag the inputs and outputs of photosynthesis into the correct boxes.

  6. 6

    What is the main food that a plant makes during photosynthesis?

  7. 7

    Plants store the glucose as starch for later use 🌽. That's why we eat potatoes, rice, and grains — we're eating the plant's stored energy!

Practise Photosynthesis with Whizlo

Free AI-tutored lessons, unlimited practice questions, and progress tracking for ages 16–18. Aligned to the UK National Curriculum.