BIOLOGY 1 HONORS LaVilla School of the Arts PLANT TISSUE BIOLOGY 1 HONORS LaVilla School of the Arts

STOMATA exchange O2 and CO2 for photosynthesis STOMATA exchange O2 and CO2 for photosynthesis. They’re REGULATED by GUARD CELLS that open and close the stomata.

DERMAL TISSUE OUTER layer Like skin Waxy coating on leaves and stems

GROUND TISSUE Makes up the INSIDES Supports the plant Stores glucose Contains chloroplasts! Photosynthesis happens here

MERISTEMATIC TISSUE Located only at the root tips Uses mitosis to extend the roots of the plant

VASCULAR TISSUE Like the veins + arteries Transports water, sugar and nutrients 2 TYPES: XYLEM = moves WATER from roots  leaves PHLOEM = moves SUGAR from leaves  stems and roots

TRANSPIRATION = H20 vapor evaporates through the stomata via the XYLEM TRANSPIRATION = H20 vapor evaporates through the stomata via the XYLEM. ROOTS  STEM  LEAVES REQUIRES THE USE OF: 1. ADHESION (water to water) 2. COHESION (water to the xylem) =CAPILLARY ACTION!