1. Plants

2. Plant Survival on Land
Three adaptations have allowed plants to thrive on land
The ability to prevent water loss
The ability to reproduce without water
The ability to absorb and transport nutrients

3. Preventing Water Loss
Cuticle – a waxy protective covering on plant surfaces that prevents water loss

4. Reproducing by Spores and Seeds
Spore – a haploid reproductive cell surrounded by a hard outer wall
Seed – an embryo surrounded by a protective coat

5. Absorbing and Transporting Materials
Vascular tissue – transports water and dissolved substances from one part of the plant to another
Two types of specialized tissue
Xylem – carries water from the roots to the stems and leaves
Phloem – carries organic compounds (like carbohydrates) in any direction

6. Xylem and Phloem

7. Classifying Plants
Nonvascular plants – don’t have true vascular tissue or roots, stems, or leaves
Example – mosses
Vascular plants – have vascular tissue and true roots, stems, and leaves.
Example – ferns, conifers, flowering plants

8. Vascular Plants Seedless Seed plants – produce seeds for reproduction
Ferns
Seed plants – produce seeds for reproduction
Gymnosperms – conifers (cone bearing trees)
Example – Pine trees
Angiosperms – flowering and fruiting plants
Example – apple and orange trees

9. Types of Trees Deciduous trees – leafy trees. Lose their leaves.
Coniferous trees – have pine needles rather than leaves. Have cones.

10. Monocots and Dicots Flowering plants (angiosperms) are divided into:

11. Plant Cells Three types of plant cells: Parenchyma Collenchyma
Sclerenchyma

12. Flower Structure

13. Leaf Structure

14. Self Quiz What are vascular plants? What are nonvascular plants?
What are angiosperms? What are gymnosperms?
What are monocots? What are dicots?
What are seeds? Cones? Fruit?

15. Leaf Functions
Leaves serve as the primary site of photosynthesis in most plants

16. Plant Leaves
Stoma (stomata)– the major pathways through which CO2 enters and O2 leaves a plant
Guard cells – control the opening and closing of the stoma

17. Types of Leaves
Simple leaf
Compound leaf
Doubly compound leaf