Plant Tissues Flashcards
What is the function of vascular tissue?
○ Long distance transport
○ Provides structure & support (secondary function … result of protecting this special type)
What is the overall function of xylem tissue?
Water & minerals
ROOTS to SHOOTS!
What are the 4 cell types that compose xylem tissue?
- Xylem parenchyma
- Xylem fibers
- Tracheids
- Vessel elements
Tracheids and Vessel elements are classified as what type of cells?
Conducting cells
Describe Tracheids.
long, narrow, tapered ends
Location=Xylem
Describe Vessel Elements.
Wider, Stacked, Open end walls
Location=Xylem
What is the overall function of phloem tissue?
Carbohydrate transport via multi-directional movement
What 4 cell types compose phloem tissue?
- Phloem parenchyma cells
- Phloem fibers
- Sieve tube elements
- Companion cells
Describe sieve tube elements.
– Conducting
– Alive (barely)
– No nuclei, mitochondria, ribosome
Location=Phloem
What is the function and location of the companion cells of phloem tissue?
-Adjacent to each sieve-tube element and Helps it.
-Alive!
Location=Phloem
What are the two types of meristem?
> Primary Meristem
>Secondary Meristem
Describe 1° meristem: Purpose? Location? Type of growth? Type of plants?
§ All plants
§ Increase of Length
§ 1*growth = herbaceous (dermal, ground, and vascular)
§ Located at growing tips (apical)
Describe 2° meristem: Purpose? Location? Type of growth? Type of plants?
§ Lateral meristems
§ Increase of width
§ Some plants (not all)
§ Woody growth is produced – woody 2* growth
In meristem, where is the zone of cell division located?
@ the core of the meristem
What composes the zone of cell elongation?
- protoderm
- ground meristem
- Pro cambium
