Organ Systems in Plants Flashcards
What characteristics do organisms from higher eukaryotic systems exhibit
Multicellularity
Cells -> Organisms
Enumerate each step
- Cells
- Tissues
- Organs
- Organ Systems
- Organism
2 MAJOR organ systems of VASCULAR PLANTS
Root and Shoot Systems
What 2 parts of a plant does the SHOOT SYSTEM comprise
Vegetative
Reproductive
Organs under
- Vegetative (3)
- Reproductive (3)
V:
LEAVES
BUDS
STEMS
R:
FLOWERS
FRUITS
SEEDS
What is one essential plant process
and what is its definition
TRANSPIRATION
loss of water from the stomates thru water vapor
3 BASIC STEPS of Transpiration
- Absorption of roots
- Capillary Action via xylem
- Evaporation in leaves
CAUSE of capillary action in transpiration
what specific EFFECT that cause does
and due to WHAT PROPERTY of water is this cause based on
Transpiration Pull
Negative Hydrostatic Pressure
Cohesive Property
What maintains transpiration pull
EVAPORATION
Transpiration occurs mostly on the ____ (leaf part), and may also take place in ___ (2)
abaxial
cuticle
lenticels
What time of day is the HIGHEST RATE of TRANSPIRATION
noon
FACTORS that affect TRANSPIRATION RATE
- Internal
- External
- number, size, position, and movement of stomates + thickness of cuticle layer
- air temperature, wind speed, relative humidity, radiation intensity
4 set ups in experiment
one subjected to:
1. normal conditions
2. artificial light
3. fanning
4. covered with plastic bag
formula for TRANSPIRATION RATE
(Vf - Vi) / time
cm3/min