Huntington>Conservatory>Plant Lab> Leaves>Stomata

Leaves

Stomata


All leaves have tiny pores that are used for gas exchange. These pores are called stomata (singular: stoma), and are usually found on the underside of a leaf. To prevent dehydration through open pores, a pair of guard cells surrounds each stoma to regulate its opening and closing. At this exhibit, you can see clear pictures of stomata and guard cells underneath a microscope.

A microscopic view of a stoma and its guard cells:


The guard cells are green since they contain chloroplasts.


Why use this plant?       Although all plants have stomata, the purple background of this plant makes it easier to see the green gaurd cells and pores.

Back to top

Back to Plant Lab mainpage

Back to Conservatory


Copyright for the photos on this website belongs to Pu Chen. Images should not be redistributed without the permission of the photographer.