plant body of angiosperms and gymnosperms Flashcards
types of vascular plants
club mosses, seed plants, ferns
types of seed plants
angiosperms and gymnosperms
types of gymnosperms
conifers and ginko
node
area of growth of flowers and leaves (internode = no growth)
apical meristem
located at the tips of shoots and roots in all vascular plants, function in growth
deciduous vs evergreen
loses leaves vs keeps leaves
types of evergreen leaves
scaly, needlelike
are all angiosperms deciduous in a temperate climate?
no
terminal/axillary buds
areas of growth, delineates where leaf is
petiole
stem of leaf
what is a leaf made up of
the blade and the petiole,
bundle scars
mark left by a leaf after it falls off the twig
function of terminal bud scales
measuring growth
phyllotaxy
arrangement of leaves of stem
types of leaf arrangements
opposite, alternate, whorled (more than one leaf at a point)
distichous vs decussate
decussate leafs are arranged at a 90 degree angle
function of leaves
capture sunlight, have pores for transpiration and gas enhance, release water vapor and O2, function in protection and support, attract pollinators, trap insects, photosynthesis
layers of internal structure of leaves
upper and lower epidermis at top and bottom, stomata is found within, vascular bundle found within mesophyll
guard cells
found in stomata
pubescence
presence of fine hairs
trichomes
reduce exposure to air movement, used for plant protection
bracts
attract pollinators
types of conifer leaves
pines (in bundles), spruces (not in bundles), firs (flat), scales
magnoliophyta
aka angiosperms
eudicots vs monocots
E :broadleaf, has a stemlike petiole, branched veins
M :narrow leaf, parallel veins
flower parts of eudicots vs monocots
E: four or five
monocots: 3
number of pores present in eudicots and monocots
E: 3 pores
M: 1 pore
sessile
leaf with no petiole
lamina
blade
midrib
main vein
margin
outside of leaf
stipules
accessory leaf underneath blade
simple leaf vs compound leaf
one continuous blade vs multiple leaflets
compound leafs have a rachis (plant stem)
distinguishing simple leafs from compound leafs
leaflets never have buds in axiles of petiolules
leaflets are always arranged in two rows, never spiraled, whorled, or decussate
tip of rachis has no terminal bud
types of pinnate leaves
unipinate
bi pinnate
tri pinnate
palmate
all leaves attached at same point
advantages associated with compound leaves
leaflets can flex in the wind, increased turbulence, pests and disease spread less quickly
types of venation
pinnate, palmate, parallel, or dichotomous