chapter2425_Plant_Structures Flashcards
annual plant
live and die within a year
perennial plant
live for many years
2 types of perennial plants
deciduos and evergreen
deciduous
loose leaves in fall
three types of plant tissues
epidermal, ground, and vascular
transport is provided by _ tissue
vascular
protection is provided by _ tissue
epidermal
support & storage is provided by _ tissue
ground
periderm
outer layer of tissue on roots and stems
root epidermis
acidic cells on periderm
stem epidermis
cork aka bark
leaves epidermal tissue
secretes waxy cuticle
why do leaves have waxy cuticle?
protects froms dehydration and repels water
plant body consist mostly of _ tissues
ground
parenchyma
ground tissue used for juice and starch storage
collenchyma
ground tissue that provides flexible support
sclerenchyma
ground tissue that provides firm support
types of vascular tissues
xylem and phloem
what is the xylem
vascular tissue that performs water transport from roots to leaves
what is the phloem
vascular tissue that performs sugar transport from leaves to rest of plant
where does primary plant growth occur
stem and root tips
primary growth occurs lengthwise or diameter-wise
lengthwise
what root cells contribute to primary plant growth
root meristem cells
what stem cells contribute to primary plant growth
apical meristem cells
define secondary plant growth
diameter-wise growth - occurs in woody perennials
what tissue is responsible for secondary plant growth
cambian tissue
where is Vascular Cambium located
between phloem and xylem
where is Cork, or Bark, Cambium located
between bark and cortex tissue, cortex is the photosynthesizing tissue
leaf blade
leaf body
leaf veins
transport vessels
leaf petiole
attaches leaf blade to stem
where on leaf are stomata located?
epidermis
what are stomata housed with on leaf epidermis
guard cells
what are stoma used for on leaf
gas exchange
types of internal leaf tissues
Palisade Mesophyll cells, ground tissues, Spongy Mesophyll Cells, Vascular Tissues
internal leaf ground tissue
2 layers of photosynthesizing cells in leaf
Palisade Mesophyll Cells
tightly packed cells located on top of leaf
Spongy Mesophyll Cells
not as tightly packed as Palisade, located on bottom of leaf
internal leaf vascular tissues
located in leaf veins, consist of xylem and phloem
internal leaf tissue xylem
used for water transport from roots
internal leaf tissue phloem
used to transport sugars throughout plant
monocot stem structures
pith, vascular tissue, epidermis
monocot stem epidermis
green leafy covering of stem
monocot stem pith
ground tissue that stores starch
monocot stem vascular tissue
stem Xylem and Phloem
annual eudicot stem epidermis
green outer covering of stem
annual eudicot stem pith
ground tissue that stores starch
annual eudicot vascular tissue
Xylem and Phloem concentric around outside of stem
perennial eudicot stem structures
cork cambium, cortex, epidermis, phloem, vascular cambium, xylem rings
perennial eudicot stem epidermis
cork or bark
perennial eudicot stem cork cambium role
produce bark and cortex cells
perennial eudicot stem cortex
cells under bark that perform photosynthesis
perennial eudicot stem phloem
tubes that transport sugar
perennial eudicot stem vascular cambium role
annually produces new xylem and phloem
perennial eudicot stem xylem rings
water transport
root hair role
anchors root, water absorption in soil
root meristem
site of cell protection
root cap role
protects root
eudicot root epidermis
also known as periderm, has root hairs to absorb minerals and water, produces acid for protection from bacteria and fungi
root hairs
filaments that extend from root epidermis, 95% of plant water and nutrients absorbed through them
lateral root structures ground tissues
cortex, endodermis, pericycle
lateral root cortex
used for starch and sugar storage
lateral root endodermis
filters water for root
lateral root pericycle
lateral root source
phloem use in lateral root
trasport of sap and sugar
xlyem use in lateral root
water transport
plant nutrients percent breakdowns
Carbon: 45, Oxygen: 45, Hydrogen: 6
Plant compounds with C or H or O
cellulose, starch, plant oils, nectar, glucose, and juice sugars
plant nutrients contain
NPK, magnesium, sulfur, calcium; trace amounts of boron, iron, manganese
transpiration
water transport
3 steps of cohesion-tension theory
capillary action, osmosis, evaporation
what is xylem composed of
long tapered cells called tracheids and short pipe pieces -resembling vessel elements, both used for water transport
translocation
sugar transport
sugar transport works according to _
Pressure Flow Theory
plant enzymes that control sugar transport
Auxin and Gibberellins
active sugar transport occurs through _ tissue
phloem
Phloem is composed of
Companion cells and Sieve tubes