September 29, 2016

Biology: Photosynthesis

Photosynthesis - means using light to make food.
It is a process by which  a cell captures the sunlight energy and uses it to make food.

1st stage of photosynthesis - the pigments (chlorophyll) in chloroplasts (the green organelles inside plant cells capture the energy in sunlight.

2nd stage of photosynthesis - the cells use the captured energy to produce sugars.

The cell needs:
  • water H2O
  • carbon dioxide CO2
6 CO2 + 6 H2O  → light energy  → C6H12


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