Vegetative plant organs Flashcards
Vegetative plant organs
Root, stem, leaves
Root function
- ancor plants
- absorb water and nutrient materials from the soil
- conduct water and nutrient materials to the rest of the plant
- store nutrient materials
- serve as important food resources for animals
anchor
zakotvit
root anatomy
root hairs, epidermis, cortex, pericycle, xylem, phloem
root anatomy parts
region of maturation, region of elongation, apical meristem, root cap
root hairs translation
kořenové vlášení
epidermis translation
pokožka
phloem translation
lýko
xylem translation
dřevo
vascular tissue translation
vodivé pletivo
root cap translation
kořenová čepička
vascular tissue
phloem + xylem
xylem function
carries minerals and water up
phloem function
carries sugars down
apical meristem
growth + division
region of elongation
growth, no division
region of maturation
no growth, no division
Types of roots
taproot, fibrous roots, adventitious roots, aerial roots
taproot
= one big root that can store food
= bulva
- function: absorption, anchoring
- e.g. carrot, beetroot
fibrous roots
= svazčité kořeny
=numerous small roots
- grow near surface
- function: absorption, anchoring
- e.g. grasses
adventitious roots
= roots from stem
= adventativní kořeny
- grow down to soil from stem, above ground
- function: support, absorption
-e.g. Banyan tree
Aerial roots
= vzdušné kořeny
- grow without soil, in air
- function: absorb water from moist air
- e.g. orchids, banyan, vines
Types of stem
herbaceous and woody
herbaceous stem
lack tough structural(=woody) parts
woody stem
structural components made of lignified cellulosis cell
stem function
- anchor leaves to the roots
- structural support
- internal transport
- production of new plant tissues
anchor leaves to the roots=
connecting photosynthetic tissues to mineral sources
absorption translation
vstřebávání, pohlcení
stem structural support=
- plants are upright
- plants harvest light
- plant reproductive structures exposed for pollination
pollination translation
opylování
stem internal transport=
- water and minerals from roots(xylem)
- sugar from photosynthesis to roots(phloem)
stem structures
Node, internode
node translation
úzlina
node
=place where leaves are attached
- lateral bud with an apical meristem capable of developing into a new shoot
lateral bud translation
postranní pupen
internode
part of stem between nodes
stem internal anatomy types
monocot, dicot
monocot translation
jednoděložné
dicot translation
dvouděložné
stem growth
- growth in length
- growth in circumference(width)
stem growth in length
only at tips of stems where new primary growth occurs via apical meristems
stem growth in circumference
via lateral meristems - only dicots(trees)
Woody stems parts
Heartwood, sapwood, bark