Structure and Growth of Angiosperms Flashcards
1
Q
Organs
A
-leaves, flowers, root part
2
Q
systems
A
-root system and shoot system
3
Q
tissues
A
- dermal: the outermost layer of the plant, epidermis and cuticle
- vascular: the moving of water and nutrients through plant, also known as xylem
- ground: not dermal or vascular tissue
4
Q
Xylem Vascular Tissue
A
- tracheids: elongated dead cells that move water, heavily lignined
- vessel elements: stacked end to end
- phloem: sieve tube members + guard cells
5
Q
Ground Tissue
A
-pith and cortex
6
Q
Cell types:
A
parenchyma: average plant cell, metabolic + water vacuole
sclerenchyma: very thick secondary cell walls, dead when mature,
collenchyma: support specialized
7
Q
Roots
A
fibrous: monocots
taproots: dicots
function: anchor plant, uptake water, stores food, exchange of nutrients
8
Q
Root Hairs
A
-increases the surface area of a root for absorption
9
Q
Root caps
A
- suberin, really strong + waterproof
- continuously shredded and remade
- like a helmet for the root
10
Q
Meristem
A
- the lengthening of roots
- protoderm: dermal tissue
- procambium: vascular tissue
- ground meristem: ground tissue
11
Q
Shoot System
A
- nodes, internodes, terminal branches
- apical meristem: where growth happens In terminal bud
- axillary bud: along the length, only grow when apical meristem is cut off
12
Q
stolon
A
- a horizontal stem is used for asexual reproduction, where they grow outwards makes new roots and shoots
ie. strawberries
13
Q
Rhizome
A
-horizontal runner underground
14
Q
bulb
A
-a place for new growth
15
Q
tubers
A
-the underground stem, stores starch
