Chapter 23 Flashcards
Plant Tissue system
Dermal tissue
Ground tissue system
Vascular tissue
Dermal tissue function
Protection , prevention of water loss
Ground tissue function
Food storage
Photosynthesis
Vascular tissue function
Transport water and minerals
Transport food
Stem functions
Provides support for the plant
Transports water from roots to the rest of the leaves and plants
Some stems store food
Xylem type 2
Tubular vessels
Hollow
Transport water within the flowering plants
Btwww they die but still transport H2O but they’re considered a dead tissue
Xylem type 2
Xylem tracheids
Long tapering cells
Hollow
Found in pine trees
What’s lignin?
The thing that strengthens xylem
PHOLEM FUN
transports glucose eg sugars and other molecules
Roots function
Hold plant in position (anchorage)
Absorb water and minerals from the soil
Some roots store food eg carrots , turnips and parsnip
Structure of root
Root hairs
(Increase surface area for water and mineral absorption)
Meristem
(Region where new cells are produced)
Root cap
(Protects tip of growing root)
Root types
Fibrous (branching in equal size , roots hold soil in place to prevent erosion) eg grass
Tap roots (larger central root reaches deep water sources underground) eg trees and dandelions
Leaf functions 1
Main photosynthetic organ
Broad, flat surface increases for light absorption
Leaf function 2
Have systems to prevent water loss
Stomata open in day but close at night or close when hot to conserve water
Waxy cuticle on surface
System of gas exchange - (allow CO2 in ans O2 out)
Monocots
Long , narrow