PLANTS Slide 2 Plants: Grouped by characteristics Nonvascular
Simple; most grow in moist places No vascular tissues. No way to
move around water and nutrients Need to live close to water Mosses,
liverworts, ferns Evolved first Vascular Have Vascular tissues:
roots, stems and leaves Allows them to grow large and in many
different environments Includes trees, flowering plants, crops,
etc. Slide 3 Non vascular = Bryophytes Only nonvascular plants
(mosses, liverworts) no ability to internally transport water and
materials requires moist environment live in colonies, has rhizoids
to anchor it important in soil formation Slide 4 Vascular Plants -
Tissues Plants have 3 tissue systems: Ground tissue Photosynthesis,
food storage, regeneration, support, protection Vascular tissue
(xylem and phloem) Movement of materials Dermal tissue (exterior)
Protection and prevention of water loss Slide 5 Plants: Stems
Function of stems Support, transport of water & food Green
Woody Transport of materials xylem - conducts water and minerals
phloem - conducts food Slide 6 Growth Plant growth occurs at
specialized areas called meristems (meristematic tissue) Primary
growth = growth in length Secondary growth = growth in girth Slide
7 Leaf function Photosynthesis - more later Transpiration - 99% of
water absorbed by plant is lost by transpiration Stomata are tiny
holes on the bottom of the leaf that let gases and water in and out
Opening controlled by guard cells Slide 8 Photosynthesis
chlorophyll the green substance found in plants that traps energy
from the sun and gives plants their green color chloroplasts -
where photoysynthesis happens Uses carbon dioxide, water, and
sunlight - reactants Releases oxygen and makes sugar, oxygen is
released - product Slide 9 Plant Evolution First = Bryophytes - no
roots, leaves or stems, no vascular system, simple reproduction
relying on water. Second = Ferns - first vascular system Reproduce
using spores Slide 10 Gymnosperms Vascular, seed bearing,
flowerless plants means naked seed largest division is conifers
leaves are called needles Pines, cedars, spruces, firs Slide 11
Angiosperms Flowering, vascular plants Most successful plants:
deciduous trees Magnolias, roses, apple trees Plant Parts Pistil
part of a flower that makes the eggs that grow into seeds Stamen
part of a flower that makes pollen Pollen tiny grains that make
seeds when combined with a flowers egg monocot seed a seed that has
one seed leaf and stored food outside the seed leaf dicot seed a
seed that has two seed leaves that contain stored food Slide 12
Plant Adaptations Specialized tissues vascular tissues Cuticles
Waxy coating on surfaces resists drying out stomata exist to allow
necessary gas exchange Alternation of generations Plants live part
of their life in a haploid stage and part in a diploid stage
haploid portion = gametophyte diploid portion = sporophyte
Co-evolution with pollinators
