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Wednesday 3 August 2016

Photosynthesis

WALT - Write a factual explanation.

Photosynthesis


Photosynthesis is the procedure plants and other photosynthetic organisms use to make food.


First, the  plant or organism captures the energy of the sunlight. In plants, the energy capturing process occurs in the leaves and other green parts of the plant. The chlorophyll in plant cells is what gives plants their green colour. The green colour comes from pigment coloured chemical compounds that absorb light. The pigments capture light energy and use it to power the next part of photosynthesis.

Next, the  plant or organism transfers the light energy into a chemical energy. This chemical energy is then stored as carbohydrate molecules, such as sugar including glucose. Which is made of synthesised 6 CO2 (carbon dioxide ) from our exhaled air and 6 H2O (water) absorb from the ground. This chemical energy is the fat, protein and starch made by plants.


As the plant absorbs CO2 it excretes O (Oxygen) as its waste.


Most plants, algae, and cyanobacteria perform photosynthesis. Photosynthesis is a crucial process ; without it we wouldn't have air or be able to breathe fresh clean air.

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