Unit 1 Flashcards
annuals
completes after 1 year
biennials
completes after 2 years
perennials
keeps growing
what does the ovule contain
embryo of flowering plant
radicle
root
epicotyl
extension above the cotyledon
cotyledon
essential food supply before the true leaves come in
epigeal
brings shell above ground
hypogeal
shell stays in ground
fungicide
what the seed is covered with to help the growth of fungus
what temp do seeds germinate best at?
70-80 F
autotrophic
something that survives with carbon dioxide
name taxonomy
kingdom, phylum/division, class, order, family, genus, species
imbide
take in water
what 4 parts does a flower need to be complete?
sepals, petals, stamens, pistils
what makes a flower incomplete?
missing either the stamen or pistil
what is the pistil also known as?
carpel
what does the zygote become?
the seed
what light does a plant need to grow?
red and blue light
transpiration
water loss through leaves
stomata
small opening on underside of leaf
blade
main body leaf
petiole
attaches blade to stem
midrib
central bein down middle of leaf
apex
tip of leaf
base
bottom of leaf, attaches to petiole
margin
edge of leaf
what if the leaf is brown, crispy on the sides?
this can be caused by salt
lenticels
so gas can move or come out of leaflllllllllllllllllllllllllllllllllll
translocate
move nutrients from roots to leaves
poaceae
grass
what does a dicot stem look like?
a pinwheel
turgor
pressure that comes out of plant, helps plants stand up
what are the roots primary function?
respiration, translocate, store food, anchor, give off CO2
dehiscent
splitting or bursting open
indehiscent
not splitting opening to release the seeds when ripe
angiosperm
vascular plants with stems, roots, and leaves
what are found in flowers in an angiosperm?
seeds
gymnosperms
seeds found in cones
determinate
plants that grow to a certian maturity
indeterminate
grows all season long (not one big collection)
inflorsecnce
flowering structure
plant growth regulation
reactions depends on amount of hormone and tissue senstiivty
plant growth regulation
reactions depends on amount of hormone and tissue sensitivity
what are the 5 classes of pgr?
auxin, Gibberellins, cytokinin, abscisic, ethylene
auxin
a group that regulates plant growth and roots
gibberellins
molecules that regulate seed dormancy
cytokinins
molecules that regulate cell division and stimulate shoot formation
abscisic acid
hormone that regulates seed maturation and responses to CHANGE IN WATER
ethylene
regulates fruit ripening
tropisms
plant growth toward or away form a stimulus
phototropism
light source tropisms
gravitropism
gravitational field tropism
thigmotropism
directional growth response to contact with object
seismonasty
a nastic movement result from shaking or contact
nyctinasty
plant’s response from light or dark
totipotent
contains gene’s of parents (clone) PROPAGATION
tissue culture
collection of techniques to grow and maintain a plant
what is the order of tissue layers from inner to outer on a tree
pith, heartwood, sapwood, vascular cambium
Aggregate fruits develop from a single flower with many what
ovaries
where does cell division occur?
in the meristem
How many cotyledons does a dicot have?
2
name 3 types of plant tissue
dermal, ground, vascular
What color is the radicle?
creamy white