Study Set Content:
remarkably constructed solar panels
leaves
how many cells in a leaf primordium during early spring
200 cells
stalk of the leaf
Petiole
hormones are produced that stimulate these cells to begin dividing, what are these factors
exchanges in temperature, day length, and availability of water
network of veins(vascular bundles)
Flattened Blade or lamina
when leaves lack petiole they have this
Sessile
pair of leaflike, scalelike, or thornlike appendages
Stipule
leaves of deciduous trees normally live through only
one growing season
even those of evergreen trees rarely function for more than
2-7 years
all have axillary bud at the
base
Leaves of flowering plants are associated with
Leaf gaps
Regardless of the number of leaflets,
a compound leaf still has a single axillary bud at its base with the leaflets having no such buds
Divided in various ways into leaflets
Compound leaf
Has a single blade, presence of single lamina, Incisions do not touch the rib
Simple leaf
have the leaflets in pairs along an extension of the petiole
Pinnately compound
extension of the petiole
rachis
leaves have all the leaflets attached at the same point at the end of the petiole
Palmately Compound
leaflets of pinnately compound leaf may be subdivided into still smaller leaflets
Bipinnately compound
green leaves capture light energy to chemical energy. This involves the trapping and ultimate storing of energy in sugar molecules that are constructed from ordinary water and from carbon dioxide present in the atmosphere
Photosynthesis
green leaves capture light energy to
chemical energy
