found in the lower surfaces of leaves that are dotted with tiny pores which not only allow entry for the carbon dioxide gas needed for photosynthesis but also plays role in diffusion out of the leaf of oxygen produced during photosynthesis
Stomata
consists of a pore bordered by a pair of sausage-shaped guard cells
stomatal apparatus
controls water loss when the guard cells inflate or deflate, opening or closing the pore
stomatal apparatus
Most of the water reaching the leaves evaporates in vapor into the atmosphere by
Transpiration
special openings in some plants that are at the tips of leaf veins
Hydathodes
Leaves also function in (answer) as well as in other (answer) they produce waste products
respiration, metabolic activities
Play a major role in the movement of water absorbed by roots and transported throughout the plant
Leaves
but lobed leaves of a tulip tree
Alternate, simple
leaf of a black walnut
Pinnately compound
leaf of a grass
Parallel-veined leaf
leaves of a bedstraw
Whorled leaves
forces liquid water out of the hydathodes, usually at night when transpiration is not occuring
Root pressure
leaf of a maple
Palmately veined leaf
loss of water through hydathodes
Guttation
leaf of a buckeye
Palmately compound
Hairy, slippery or sticky, waxy or glossy, pleasantly fragrant or foul smelling, edible or poisonous
tubular, variously shaped, flattened, spinelike, cup-shaped feathery, colored
leaves of a dogwood
Opposite, simple
leaf of a Ginkgo tree
Fan-shaped leaf showing dichotomous venation
this is where leaves attach
Nodes
arrangement of leaves on a stem
Phyllotaxy