Exam 1 Flashcards
1
Q
three tissue systems
A
- dermal
- vascular
- ground
2
Q
dermal
A
- protects the plant
- epidermus
- periderm
3
Q
vascular
A
- Transport/ support
- xylem
- phloem
4
Q
Ground
A
- cortex (roots)
- Pith (Stem)
- Mesophyll (leaf)
5
Q
epidermus
A
- dermal tissue
- single layer of cells
- interface with the enviornment
6
Q
Periderm
A
- when epidermis gets too small
- in woody plants
- replaces epidermis
7
Q
xylem
A
- transports water and mineral nutrients
- cells are dead at maturity
8
Q
Phloem
A
- transports sugar
- goes from leaves to wherever it is needed.
9
Q
Parenchyma
A
- living at maturity
- primary wall
- metabolic role of some kind
- found in any of the tissues
- Most Totipotent
- Cubular
10
Q
collenchyma
A
- living at maturity
- found only in ground
- Thick and uneven primary walls
- Cell wall is filled with up to 50% pectin
- used for support especially during growth
- only under ground tissue next to epidermis
- not in roots
- mostly in petiols and stems
- elongates as it grows
11
Q
Sclerenchyma
A
- dead at maturity
- thick secondary walls; High percent
- xylem
12
Q
Monocotts
A
- flowers in multiples of 3
- 1 codeliden
- vascular bundles are scattered in shoot
- vascular bundles have a star like shape in root
- leave venation is parallel most of the time.
13
Q
dicotts
A
- flowers in multiples of 4 or 5
- vascular bundles found in rings in shoots
- vascular bundles in the middle of roots
- veination is netted.
14
Q
3 organs of plants
A
- leaf
- stem
- root
15
Q
meristem
A
- perpetually making new plants
- found in root and shoot apical meristem
