Transcript Slide 1

Plants Vascular System & Leaves
Chapter 21.2 & 21.4
Vascular System
Xylemtransports water and dissolved
minerals from the roots to the rest of
the plant.
Moves by capillary action by the physical
properties of adhesion and cohesion.
Phloemmoves the products of photosynthesis
from the leaves to the roots and stems
Moves from the sugars source to the sugars
sink, this region shifts seasonally
Why are leaves important?
Site of photosynthesis, creates oxygen
Food supply for herbivores, omnivores,
and detrivores
Medicinal properties
Differences within structure used to
identify various species
Leaves are described by veination
Monocot
Dicot
Leaves are described by arrangement
Alternate
Opposite
Whorled
Leaves are described by complexity