Structure of a leaf

increase the rate of photosynthesis

attract more light

control water loss

stop carbon dioxide and oxygen gases escaping

upper epidermis

pallisade mesophyll layer

lower epidermis

stomata

upper epidermis

stomata

guard cells

xylem cells

upper epidermis

phloem

stomata

guard cells

carbon dioxide & water

carbon dioxide & oxygen

oxygen & water

carbon dioxide, oxygen & water

help control the temperature of the plant

control how much water enters the leaf

control how much glucose is stored

control the movement of water vapour & gases 

only at night 

only during the day

both during the day & the night

make more sugars at night

move water from the roots to the stem and leaves

move sugars from the leaf to be stored in the stem & roots

make more chloroplasts

the phloem cells

the xylem cells

the root hair cells

palisade mesophyll layer

the phloem cells

the xylem cells

the root hair cells

palisade mesophyll layer