Illustration showing the structure of a stoma. Stomata are pores in the epidermis of the leaf and the site of gaseous exchange in the plant. The opening and closing of the stomata is controlled by semi-circular guard cells. When the guard cells are turgid the stomata are open and when they are flaccid the stomata are closed.

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Creative#:

TPG33842658

Source:

達志影像

Authorization Type:

RF

Release Information:

須由TPG 完整授權

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n/a

Property Release:

n/a

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No

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