Plant Science Flashcards
Plants cannot…
Find water or food
Move quickly to escape predators
Avoid harsh weather
Locate a mate
-non-vascular
-restricted to a moist environment
-do not have true roots, stems or leaves
Phylum Bryophyta
Moss and liverworts
Phylum Bryophyta
Ferns
Phylum Filicinophyta
-vascular
-requires moist environment
-has true roots, stem and leaves
Phylum Filicinophyta
Cedar. Spruce, Douglas Fir and Giant Redwood Tree
Phylum Coniferophyta
-vascular
-produce seeds in cones
-true roots, stems, and leaves
Phylum Coniferophyta
Flowering Plants
Phylum Angiospermophyta
-vascular
-seeds are in special reproduction structures called flowers
-female reproductive ovary develops into a fruit
-true roots, stems and leaves
Phylum Angiospermophyta
Most advanced plant
Phylum Angiospermophyta
Angiospermophyta two distinct categories
Dicot and Monocot
Two cotyledons
Dicot
4x or 5x floral parts
Dicot
Net like veins
Dicot
Three pores in Pollen
Dicot
Bundled Vasculature
Dicot
One cotyledon
Monocot
3x floral parts
Monocot
Parallel Veins
Monocot
one pore in pollen
Monocot
Dispersed vasculature
monocot
Specialized areas of dicot plant
reproductive shoot (flower)
shoot system
stem
taproot
lateral roots
root system
shoot system
Leaf (blade, petiole)
anchors plant
absorbs water and mineral
stores surplus sugar
produces hormones
Root systems
undergoes photosynthesis
transports minerals
is involved in plant reproduction
produces hormones
Shoot system
plants have ______ growth
indeterminate
Apical Meristems
located at the ends of the shoot and root (tips)
=length
Lateral Meristems (or Cambia):
cell arranged parallel to the size of the plant
=increasing diameter/width)
meristems
area of maximum cell divison
with each division __________
one cell remains meristematic and the other increases in size and differentiates
A differentiated cell may become a
leaf, root hair, flowers, stem tissue, seeds/fruit, and bark.
Define hormone
a chemical message that is produced and released in one part of an organism to have an effect on a different part of the organism
Plant hormone associated with growth shoot and root
auxin
auxin causes _________ of cells in the stem
elongation
Plants response to it’s environment
tropism
