Plant tissues 4.2.3.1

leaf 1

has a large surface area which increases surface area for diffusion of CO2 and absorption of light for photosynthesis

leaf 2

thin so the CO2 can quickly diffuse through palisade mesophyll cells

chlorophyll

absorbs light so that photosynthesis can take place

stomata

allows carbon dioxide to diffuse into the lead and oxygen to diffuse out

epidermis

the epidermis is thin and transparent which allows more light to reach the palisade cells

waxy cuticle

the waxy cuticle is transparent so light can reach the leaf, it prevents water loss and acts as a physical barrier to fungal infection

palisade mesophyll

the palisade mesophyll layer is at the top of the leaf so light will hit chloroplasts in the cell directly

spongy mesophyll layer

air spaces allow carbon dioxide to diffuse through the leaf, increasing the surface area