Stuck on a problem? Get great tutoring at an affordable price with Chegg. Click here to join and get your 1st 30 minutes Free!

Guard cells

From Biology-Online Dictionary
Jump to: navigation, search

Guard cell

(Science: plant biology) plant cells occurring in pairs in the epidermis, flanking each stoma. Changes in turgor in the guard cells cause the stoma to open and close. A pair of cells found on each side of a stomatal opening, which has properties enabling the contraction and expansion of the stomatal pore.