1. Gymnosperms are a vascular plant that do have fruit or flowers.
Bellringer
Gymnosperms are a vascular plant that do have fruit or flowers.
True or False

2. Seed Plants
Chapter 4 Section 3

3. Characteristics of Seed Plants
Two Stage Life Cycle
Produce seeds
They nourish and protect young sporophyte.
Gametophytes do not live independently
Form in sporophyte
Sperm found in pollen
Sperm do not need water to swim in to reach the eggs
Can live almost anywhere

4. The Structure of Seeds Made of Three Parts Young plant Stored Food
Sporophyte
Stored Food
Found in cotyledon (seed leaves)
Seed Coat
Protects the young plant

5. Gymnosperms Do not have flowers of fruit Seeds are protected by cone
Four groups
Conifers
Ginkgoes
Cycads
Gnetophytes

6. Gymnosperms The Importance of Gymnosperms Economically important Resin
Wood for building
Resin
Makes soap, turpentine, paint and ink
Anticancer drug
Anti-allergy drug

7. Gymnosperms Gymnosperm Life Cycle
1. Seed contains young sporophyte. Grows into an adult sporophyte
2. Spores are produced. Grow into gametophytes.
3. Sex cells are produced in cones.
4. Wind carries pollen to egg; sperm fertilizes egg
5. Fertilized egg develops into young sporophyte with seed

8. Angiosperms Produce flowers and fruit 235,000 species
Found almost anywhere

9. Angiosperms Angiosperm Reproduction Flowers help with reproduction
Pollination:
Wind
Animals
Eat and dispose
Carry burrs with fur

10. Angiosperms Two Kinds of Angiosperms 1. Monocot 2. Dicot
Leaves with parallel veins
Flower parts in threes
Scattered vascular tissue
One cotyledon
Examples: grasses, orchids, lilies, palms
2. Dicot
Leaves with branching veins
Flower in parts of fours or fives
Ring of vascular tissue
Two cotyledons
Examples: roses, cactuses, sunflowers, peanuts, peas

11. Angiosperms Importance of Angiosperms Food to animals Food crops
Corn, wheat, rice
Building material
Oak trees
Clothing and rope
Cotton, flax
Medicines
Rubber
Perfume/oils