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From plant to chloroplast HTML5

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Summary

All plants are capable of producing their own organic material in the form of sugars (carbohydrate), from water, carbon dioxide and light energy. This is photosynthesis.

The rejected dioxygen is a byproduct of photosynthetic reactions. These are produced in the leaves, at the cellular level which contain numerous specialised organelles: the chloroplasts.

Water drawn by the roots is transported by the raw sap to the leaves, while the synthesized sugars in the leaves are transported to other plant organs by the phloem. Carbon dioxide from the air enters the leave through small orifices called stomata.  This is where the dioxygen produced is rejected into the air.

Click twice on  to see where does photosynthesis take place.

Learning goals

  • To understand the role of photosynthesis.
  • To identify which part of the leaf is involved in photosynthesis.
  • To understand the role and the structure of the chloroplasts.

Keywords

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On Earth, plants are the primary producers of biomass. they are photoautotrophs, meaning that they are capable of producing organic molecules (components of living beings) from minerals,…

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