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Biology 106
introduction
78
Biology
Undergraduate 1
05/02/2011

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Cards

Term
Root System
Definition
the Roots
Term
Shoot Sytem
Definition
Stems and Leaves
Term
Vegetative Organs
Definition
Roots, Stems & Leaves
Term
Reproductive Structures
Definition
Flowers, Seeds, and Fruits
Term
Where is the plant root system located?
Definition
Underground
Term
What are the functions of the roots?
Definition
To anchor plant, absorb water and mineral from the soil, and to store food
Term
Node
Definition
where a leaf attaches itself to the stem
Term
internode
Definition
region between nodes
Term
auxillary buds
Definition
produce new branches of the stem or flower
Term
What does the stem transport?
Definition
water and minerals from the roots and sugar from the leaves
Term
what is the major organ in photosynthesis?
Definition
leaf
Term
Blade
Definition
wide portion of leaf with most photosynthese tissue
Term
Petiole
Definition
stalk that attaches a leaf blade to the stem
Term
Cotyledons
Definition
embroyonic seed leaves providing nutrition from the endosperm
Term
Monocots or Eudicots have one seed?
Definition
Monocots
Term
Monocots or Eudicots have two seeds?
Definition
Eudicots
Term

Monocots or Eudicots?

Have vascular bundles scattered

Definition
Monocots
Term

Monocots or Eudicots?

Have vascular bundles arranged in a distinct ring?

Definition
Eudicots
Term

Monocots or Eudicots?

Have flower parts in threes and/or multiples of three

Definition
Monocots
Term
Monocots or Eudicots?
Definition
in four and fives or multiples of fours and fives
Term
Epidermal Tissue
Definition
form the outer protective covering
Term
Ground Tissue
Definition
fills the interior of the plant
Term
Vascular Tissue
Definition
transport water and nutrients and provides support
Term
Epidermis
Definition
outer protective covering tissue of plant roots, leaves, and stems of non woody plants
Term
stomata
Definition
regulates gas exchange and water loss
Term
flower
Definition
reproductive structure
Term
Ground Tissue
Definition
contains parenchyma, collenchyma and sclerenchyma
Term
Parenchyma
Definition
least specialzed cells that divide to form more specialized cells
Term
Collenchyma
Definition
gives flexible support to immature regions of plants
Term
sclerenchym
Definition
thick secondary cell walls that provide strong support to mature regions of the plants
Term
Xylem
Definition
vascular tissue that conducts water and mineral through the plant from roots to leaves
Term
Phleom
Definition
vascular tissue that conducts organicc solutes in plants from leaves to roots
Term
taproot
Definition
primary root that stores food, ex. carrot
Term
mycorrhizae
Definition
associated between fungus and roots
Term
stolons
Definition
stems that grow along the ground, new plants grow where the nodes contact the soil
Term
Rhizomes
Definition
underground horizontal stems, ex potatoes
Term
Essential nutrients
Definition

must fulfill the following:

identifiable nutritional role

no other element can substitute & fulfill the same role

without the presence the plant will die

 

Term
Beneficial nutrient
Definition
elements required to improve growth
Term
Hydroponis
Definition
method used to determine essential nutrients, works well with macronutrients but is hard to measure in micronutrients
Term
humus
Definition
decayed organic matter
Term
microspore
Definition
male gametophyte
Term
megaspore
Definition
female gametophyte
Term
Cuticle
Definition
waxy layer covering the epidermis that prevents water loss and disease causing organism
Term
macronutrients
Definition
essential elements needed in large amounts for the plant to grow such as nitrogen, sulphur or calcium
Term
Micronutrients
Definition
essential elements needed in small amounts for plants to grow such as boron, copper, and zinc
Term
Apical dominance
Definition
prevents the growth of axillary buds, when terminal bud is removed the nearest bud begins to grow and the plant branches
Term
auxin
Definition
promotes growth of fruits
Term
gibberellins
Definition
elongate stem, the dormancy of seeds can be broken by applying
Term
cytokins
Definition
promote cell division
Term
ABA
Definition
also known as the "stress hormone" it maintains seed and bud dormancy and causes closure of stomata
Term
abscission
Definition
dropping of leaves and fruits
Term
dormancy
Definition
occurs when the plant readies itself for adverse condition by stopping growth
Term
Ethylene
Definition
gas involved in abscission and ripening of fruit
Term
tropism
Definition
plant growth toward or away from any unidirectional stimulus
Term
Gravitropism
Definition
response to Earth's gravity
Term
phototropism
Definition
growth in response to light
Term
thigmotropism
Definition
growth in response to touch
Term
turgor movements
Definition
dependent on turgor pressure changes in plant cells, results from touch, shaking, or thermal stimulation but does not effect GROWTH
Term
Circadian Rhythms
Definition
sleep movements that occur regularly in a 24 hour cycle
Term
Photoperiodism
Definition
is a physiological response prompted by changes in the lenght of a day or night in a 24 hour cycle
Term
alkaloids
Definition
bitter tasting defense metabolite
Term
HR (hypersensitive response)
Definition
seals off infected area
Term
Sepals
Definition
protect the bud as the flower develops
Term
Petals
Definition
attract pollinators, and collectively are called corolla
Term
Stamens
Definition
contains anther (sac-like container) and filament (slender stalk)
Term
Carpel
Definition
contains stigma, style and ovary
Term
stigma
Definition
receives pollen grain
Term
ovary
Definition
contains ovules
Term
Pollination
Definition
transfer of pollen from the anther to the stigma
Term
self pollination
Definition
transer of pollen from anther to stigma of the same plant
Term
cross pollination
Definition
transfer of pollen from anther of one plant to stigma of another plant
Term
endosperm
Definition
nourish the embryo and seedling as they undergo development
Term
Fruit
Definition
mature ovary that encloses seeds
Term
simple fruit
Definition
develops from a single carpel
Term
compound fruit
Definition
develop from several individual ovaries
Term
aggregate fruit
Definition
develops from a single flower
Term
multiple fruits
Definition
develop from ovaries from seperate flowers fused together
Term
seed germination
Definition
occurs when growth and metabolic activity resume
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