Assertion: epidermis's pore | /r/HasProperty | surrounded on each side
Facets:
value: by chloroplast-containing guard cells
type: OTHER
Source sentences:
text: , stoma), part of a stoma complex consisting of a pore surrounded on each side by chloroplast-containing guard cells, and two to four subsidiary cells that lack chloroplasts.
text: The stomatal pores perforate the epidermis and are surrounded on each side by chloroplast-containing guard cells, and two to four subsidiary cells that lack chloroplasts, forming a specialized cell group known as the stomatal complex.