What are openings in the epidermis of a plant that allow air and water to pass in and out of the leaf?

1 Answer
Jul 16, 2016

The openings for for the exchange of the gases #O_2 & CO_2# and water vapro #H_2O# are found on the lower epidermis of the leak and are called stomata or stoma.

Explanation:

The openings for for the exchange of the gases #O_2 & CO_2# and water vapro #H_2O# are found on the lower epidermis of the leak and are called stomata or stoma.

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Image from http://www.psmicrographs.co.uk/blog

The stomatal openings are controlled by Guard Cells which surround the stoma.