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Living world · 3–4

Photosynthesis

Photosynthesis is the process plants use to make glucose, a type of sugar. Light energy captured by chlorophyll helps turn water and carbon dioxide into glucose, and oxygen is released.

Quick review

Key points to remember

  • Roots absorb water from the soil.
  • Leaves take in carbon dioxide through tiny openings called stomata.
  • Chlorophyll captures light energy from the Sun.
  • The plant makes glucose and releases oxygen.

Useful words

Topic vocabulary

Photosynthesis
The process plants use to make glucose using light energy.
Chlorophyll
The green substance in leaves that absorbs light energy.
Glucose
A simple sugar that stores chemical energy for the plant.
Stomata
Tiny openings in leaves that let gases move in and out.