Respiration in plant

Respiration in Plants

 Respiration is carried on by all living cells of the plant. Growing organs such as the vegetative and floral buds, the germinating seeds and the stem and root-tips respire actively, while adult organs do so, comparatively, slowly. The free oxygen from air normally enters through the stomata and lenticels and diffuses through the continuous inter-cellular space system to reach the living cells.

 Stomata

The oxygen gas, after entering through the stomata, diffuses through the inter-cellular spaces into the cells and slowly oxidizes carbohydrates. The carbon dioxide that is formed in respiration diffuses through the inter-cellular spaces and finally escapes through the stomata and lenticels into the surrounding air.

Stomata

Stomata

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