Students in Mrs. Haviters' Biology class went on an in-house “field trip” to the high school’s greenhouse, where they collected leaf samples for close observation. Using microscopes, they examined guard cells and observed the structure of stomata, which are tiny pores on the leaf’s surface where carbon dioxide enters and oxygen and water vapor exit. Through this activity, students learned how stomata support photosynthesis by allowing gas exchange and how plants maintain homeostasis by closing and opening these pores.
