Download Seed Plants

The Plant Kingdom
Chapter 5:1,2,3,4 Seed Plants
Part 1 of 2
Characteristics of All Seed
Plants
 Vascular tissue
 Xylem
 Phloem
 Use Pollen and
seeds to reproduce
Vascular tissue
 Functions to provide support for the
plant to grow tall and to help transport
food, water and nutrients throughout the
plant
Vascular Tissue
 Xylem
 Water and minerals
go UP from the roots
to the stems and
leaves
 Phloem
 Moves food, made
from photosynthesis
Pollen and Seeds
 Pollen:
 carries sperm cells
to the eggs
 Seeds: contains a
young plant inside
a protective
covering
Seed Structure
 3 Main parts
 Seed coat – protects the embryo for a long
time
 Embryo – baby plant
 Stored food (cotyledon)
Structure of a Seed: Monocot vs Dicot
How are seeds dispersed?
Dispersal is the scattering of seeds by:




Wind
Water
Animal
Ejection by the plant
Germination
When the embryo begins to grow out of the seed
The seed must first absorb water from the
environment
Roots
 3 main functions





Anchor plants to the ground
Absorb water and nutrients from the soil
Store food (that we sometimes eat)
Carrots, onions, parsnips,
Beets, potatoes, radishes
Types of Roots
 Tap root
 One long, thick
main root with
smaller branch
roots
 Fibrous root
 Many similar sized
roots in a dense
mass
Root Structures
 Root hairs
 Increase absorptive area
 Vascular system
 Xylem and phloem
 Root Cap
 Protects root as it
grows through dirt
What has to happen for germination to occur?
What are
thestore
3 functions
of
Anchor,
absorb,
food
roots?
What do root hairs
do?
What does the root
cap do?
Stems
 Functions
 Transportation
 Provides support
for plant and holds
leaves up
 Some store food
Rhubarb, broccoli, asparagus,
celery
Types of Stems
 Herbaceous
 Soft stems that contain no wood
 flowers
 Woody
 Hard, rigid stems that contain several
layers (bark, living phloem, cambium,
xylem
 trees
Stem structures
Annual Rings
 Made of xylem
 Light and dark rings
represent 1 year
together
Leaves
 Function
 Carry out
photosynthesis
 Some store food
Structures of the leaf
 Cuticle – waterproof
covering to protect
from water loss
(transpiration)
 Stomata for gas
exchange
 Chloroplasts for
photosynthesis
 Vascular system