Plants Flashcards
Vascular, naked seed
Gymnosperms, conifers
Vascular, flower/fruit
Angiosperm
Flowering plants
Parenchyma function
Spaces
Storage, heal wounds
Close to each other
Collenchyma
Function
Cellulose + pectin
Support
Sclerenchyma
Second cell wall + lignin
Die when mature
The 3 tissues
Dermal
Ground
Vascular
Xylem components
Vessels
Tracheids
Xylem fiber
Phloem components
Sieve tube
Companion cells
Pressure flow model
Sugar move from source
Water leave xylem and go to phloem by osmosis
Water flow helps sugars to flow to sink
Primary vs secondary growth
Length
Width
Light dependent products
ATP
NADPH
O2
Light indpeendent
C6H12O6
No cuticle on
Root
Male reproductive
Female reproductive
Stamedn
Pistil
Root
Epidermis>protection
Cortex> contains parenchyma + collenchyma
Endodermis>xylem and phloem
Who can perform secondary growth
Dicot roots
Dicot vs monocot root system
Monocot several thin branches
Dicot main thick taproot and peripheral thin
Axillary bud
Embryonic shoot that lies at junction of stem and petiole to give rise to branch or flower
Leaf parts and functions
Cuticle > waxy layer for protection from water loss
Upper epidermis> protect internal tissue and helps gas exchange
Palisade> photosynthesis
Spongy>gas exchange and photosynthesis and support
Lower epidermis> gas exchange and stomata
Stomata
Gas exchange
Wilting may occur due to
Excessive transpiration
Monocot root vs dicot
Monocot stem vs dicot
Dicot dawayer> main circle with x in root and arranged in stem
Moncot scattered in stem and not x in root
