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Plant Taxonomy Test 1
Terms
154
Biology
Undergraduate 2
09/24/2008

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Term
Theophrastus
Definition
300 BC Greek heir of Aristotle
Term
Pendanius Dioscordides
Definition
Described about 600 species by related characteristics, not necessarily biological
Term
Van Leeuwenhoek
Definition
Cell Theory
Term
Van Helmont
Definition
plants take mass from the soil, amount of ash in plants are minerals obtained from soil
Term
Carl Linnaeus
Definition
(Species Plantarum) popularized naming system, using reproductive parts, evolution through descent
Term
Joseph Priestly
Definition
Discovered oxygen
Term
Schleidene and Schwann
Definition
Put together cell theory- idea that organisms are made of cells
Term
Rudolf Virchow
Definition
Every cell came from an existing cell
Term
L. Pasteur
Definition
spontaneous generation of life is disproved
Term
Asa Gray
Definition
Christian- appealed for a scientific explanation fro natural phen. w/o appealing to direct divine intervention
Term
Darwin
Definition
Kept design out of discussion
Term
Life Properties
Definition
response to stimuli(movement), metabolism, reproduction, chemical reactions, cytoplasmic streaming
Term
lignins
Definition
What makes wood hard (2nd most abundant wood chem.)add rigidity to cell wall
Term
Cellulose
Definition
not digestible by animals
Term
hemicellulose
Definition
chains of pentoses and hexoses
Term
Defensive compounds
Definition
Phenolics and tannins
Term
Hydrolizable tannins
Definition
protects DNA from carcinogen attachment
Term
Condensed tannins
Definition
oxygen radical absorbance, (pink,blue,red colors in leaves, fruits)
Term
Terpenes and Terpenoids
Definition
Essential oils and turpentines
Term
Nitrogen based compounds (alkaloids)
Definition
Nicotine, morphine, Caffine, Ergoline
Term
Protoplasm
Definition
living portion of the cell with all its cell functions
Term
Cell wall
Definition
chemicall inert (shell barrier) made of cellulose
Term
Cellulose
Definition
non-digestible
Term
Pectin
Definition
used as a glue between cellulose molecules
Term
Hemicellulose
Definition
glue-like substance b/w cellulose
Term
Plasmodesta
Definition
where active and passive transport occur
Term
Plasma membrane
Definition
may pull under low osmotic pressure causing shrinking
Term
Endoplasmic Reticulum
Definition
Rough- protein production Smooth- non protein synthesis
Term
Ribosomes
Definition
made of protein subunitys and RNA
Term
Golgi
Definition
site of carbohydrate synthesis
Term
Mitochondria
Definition
sties of ATP production and energy conversion
Term
Crystae
Definition
stie of electron transport chain
Term
Matrix
Definition
fluid filled space
Term
Chloroplasts
Definition
double membraned, divide independently
Term
Granae
Definition
stacks of thyloquoids suspended in the stroma (fluid filled matrix) contains chlorophyll molecules
Term
Plastid
Definition
takes on the structure or function of a mitochondria or chloroplasts
Term
Microtubules
Definition
Flagella, cilia, spindle fibers, 9x2 arrangment in f&c
Term
Nucleus
Definition
Stie of DNA replication, RNA synthesis, and transcription
Term
Chromosomes
Definition
made of chromatin and DNA
Term
Cellular Reproduction
Definition
Interphase, Prophase, Metaphase, Anaphase, Telophase
Term
Meristems
Definition
6 sided actively dividing cells (roots,stems,flowers)
Term
Apical Meristems
Definition
meristems from the tip of the plant, lengthen by the addition of cells
Term
protoderm
Definition
associated with the development of the epidermis
Term
Lateral
Definition
secondary growth- thickening of the structure
Term
Vascular cambium
Definition
runs teh length of roots and stems of most herbaceous plants
Term
Xylem
Definition
transports nutrients up the plant
Term
Phloem
Definition
transports material down the plant
Term
Nonmeristematic Tissues
Definition
Parenchyma, collenchyma, sclerenchyma
Term
Complex Tissues
Definition
Xylem, phloem, epidermis, periderm, secretory cells
Term
Epidermis
Definition
outer layer of cells that contact environment
Term
Epidermis
Definition
outer layer of cells that contact environment, single layer of cells that covers the leaf surface
Term
Periderm
Definition
the outer bark
Term
Secretory cells
Definition
break off and inject toxins
Term
Extra-floral nectories
Definition
produce sugar water to attract ants which eat other bugs
Term
Root cap
Definition
responsible for pushing through the soil, epidermal cells can be lost
Term
Microrrhizal sheath
Definition
layer around the root of fungal hyphae, increases surface areas 100x
Term
Food storage roots
Definition
storage of starches (yams, carrots, beets)
Term
Advnetiitious roots
Definition
responsible for many clonal plants
Term
Pneumatophores
Definition
spongy root extensions above the waterline in swampy or aquatic environments (better respiration)
Term
Aerial roots
Definition
roots extending out of the soil for extra support
Term
buttress roots
Definition
spread out the load of the tree (elms in swamps)
Term
Haustoria
Definition
roots that have small pegs that wrap around another plant for parasitism
Term
Nodules of Legumes
Definition
Rhizobitum- chambers associated with its growth (changes N into NO3)
Term
O horizon
Definition
full of dead plant material, high organic content
Term
A horizon
Definition
inorganic soil material w/ 50% or less organic processed material
Term
B horizon
Definition
weatherized degraded material (clays, sands) reasonable oxygen content
Term
C horizon
Definition
rocky, usually beyond root penetration
Term
Humic acid
Definition
stimulated the nutrients of the soild by making nutrients in the rocks available to plants
Term
Trace mineral needed by plants
Definition
Zinc,strontium,sodium,iron,aluminum,iodine
Term
Ranking
Definition
stems situated in a cross shape around the central stem for shading
Term
Node
Definition
point of attachment of a leaf
Term
Internode
Definition
distance between two nodes
Term
Axil
Definition
angle between the leaf petiole and the stem of the branch
Term
Bud scales
Definition
protect the bud
Term
Stipules
Definition
leaf structures at the base of the leaf that typically fall off
Term
Protoderm
Definition
cells that give rise to the epidermis
Term
Procambium
Definition
gives rise to xylem and phloem
Term
Vascular cambium
Definition
cells that exist between the primary cambium and primary phloem
Term
Pith
Definition
internal of xylem and phloem
Term
Vascular bundles
Definition
around the outside perimeter of the stem
Term
Rays
Definition
conducting cells that are involved in the lateral conduction through the stem
Term
Outer bark
Definition
cork, cork cambium
Term
Inner bark
Definition
phelioderm, cortex, phloem
Term
Rhizomes
Definition
horizontal and underground stem that can be cut off and genreate a new plant
Term
Runners
Definition
grapevines, strawberries, cut them off and have a new plant
Term
Tubers
Definition
vertical runners (potato)
Term
Bulbs
Definition
fleshy leaf structure, very short stem, and roots coming off the stem
Term
Corms
Definition
stem is thicker than bulb
Term
Cladophylls
Definition
stems that collects most of the light (prickly pear)
Term
Thorns
Definition
branches that have been specialized for protection
Term
Tendrils
Definition
used for climbing
Term
Horizontal Leaf Architecture
Definition
broad, found in the woods
Term
Vertical Leaf architecture
Definition
thick, small leaves, open fields
Term
Vertical Leaf architecture
Definition
thick, small leaves, open fields
Term
Cuticle
Definition
waxy layer above the epidermis to prevent excess water loss
Term
Mesophyll
Definition
middle portion of leaf
Term
Palisade mesophyll cells
Definition
vertically oriented for light
Term
Dicot seeds
Definition
2 halved
Term
Monocot seeds
Definition
1 seed
Term
Shade leaves
Definition
thin and broad
Term
Sun leaves
Definition
thick and small
Term
Desert leaves
Definition
tough, small, thick, may be used for water storage
Term
Spines
Definition
laeves that take on the specialized structure of defense that is needle-like
Term
Prickles
Definition
Epidermal extensions
Term
Floral leaves (bracts)
Definition
protect the internal flower features
Term
Window leaves
Definition
cylindrical shape allows light penentration into leaf buried halfway underground
Term
Carnivorous Plants
Definition
venus fly trap, sundew, pitcher plant
Term
Chlorophyll
Definition
green pigment in leaves
Term
Chromoplast pigments
Definition
Carotenoids (red,antiox),xanthophylls(yellow), flavanoids(blue,purple, pH influenced)
Term
Abscission
Definition
Separation of leaf
Term
Human Uses for leaves
Definition
Food,herbs,drugs
Term
Alkaloids
Definition
produced by high nutrient envir. plants, latex, morphine, works against general herbivores
Term
Alkaloids
Definition
produced by high nutrient envir. plants, latex, morphine, works against general herbivores
Term
Terpendoids and terpenes
Definition
strong odors, haze causings, nutrient poor envir.
Term
Phenolics
Definition
Tannin, anthocyanins, lignins
Term
Annuals
Definition
grow, reproduce, and die every year
Term
Perennials
Definition
bloom and reproduce but may take a couple years to flower
Term
Biennials
Definition
sprout first year then blooms,reproduces,and dies second year
Term
Monocots
Definition
grasses, parallel veins, 1 seed leaf, fibrous roots, petals and flower parts typically in multiples of 3, vascular bundles scattered in stem, descended from dicots
Term
Dicots
Definition
two seed leaves, flower parts in multiples of 4 or 5, vascular bundles arranged in rings, 3/4 of all plants are dicots
Term
Peduncle
Definition
the stem upon which the flower sits
Term
Receptacle
Definition
part of the flower that the sepal, petals, adn ovary are attached to
Term
Calyx
Definition
collection of sepals
Term
Sepals
Definition
green structures that house the flower before blooming
Term
Corolla
Definition
the petals
Term
Perianth
Definition
petals, corolla, sepals
Term
Stamens
Definition
attached to the base of the pistil, have anther adn filament on them
Term
Pistil
Definition
stigma,style,ovule,ovary
Term
Inflorescences
Definition
clusters of flowers associated with 1 peduncle
Term
Pericarp
Definition
Exocarp (furry skin),mesocarp(fleshy),endocarp(houses seed)
Term
Drupe
Definition
single stone inside fleshy exterior(peach, cherry)
Term
Berry
Definition
from compound ovary, many seeds
Term
Poms
Definition
the ovary housed by the receptacle (apple)
Term
Aggregate fruits
Definition
derived from a single flower with many pistils, tiny fruitlets (blackberry)
Term
Aggregate fruits
Definition
derived from a single flower with many pistils, tiny fruitlets (blackberry)
Term
Aggregate fruits
Definition
derived from a single flower with many pistils, tiny fruitlets (blackberry)
Term
Dry fruits that split
Definition
mesocarp is dry at maturity
Term
Legumes
Definition
split along 1 seam (bean)
Term
Siliques
Definition
split along 2 seams but seed retained on a central partition (mustard family)
Term
Capsules
Definition
constist of 2 carpels that split in a variety of ways
Term
Pioneer species
Definition
seeds are blown or carried away to a good growing location
Term
Late successional
Definition
plants adapted to an established location
Term
Seed Dispersal Methods
Definition
wind,animals,water,physical propulsion,human transport
Term
Plumule
Definition
embryonic plant in the seed
Term
Radicle
Definition
associated with the roots as it develops
Term
Cotalidens
Definition
possess most of the food material in dicot seed halves
Term
Endosperm
Definition
contains most of the nutrients
Term
Controls on Germination
Definition
Chemical, tough seed coat removal, inhibitors of fruit growth, climate
Term
Turgor pressure
Definition
pressure up against sides of cell wall
Term
Necessary Osmosis Gradient
Definition
soil,roots,stems,leaves,atomosphere
Term
Transpiration
Definition
total water loss through the leaves to the atmosphere
Term
Evaporation
Definition
any water lost that isn't moving through the plant
Term
Evapotranspiration
Definition
total water lost from the environment during the growing season
Term
Guttation
Definition
water passing through the plant and collecting on the external leaves as it moves through hydrothodes (openings)
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