All plants share what 4 characteristics?
1. Plants make their own food
2. Plants have a cuticle
3. Plant cells have a cell wall
4. Plants reproduce with spores and sex cells
Define a plant 'cuticle'
A waxy layer that coats the stems, leaves, and other parts of the plant that are exposed to air
What is the role of the plant's cuticle?
To keep it from drying out
What is the role of the plant's cell walls?
Helps support and protect the plant
What is thought to be the ancient ancestor of all plants?
What evidence is there to support the theory that all plants came from green algae? (5 reasons)
1. Are similar in color
2. Contain the same chlorophyl
3. Have similar cell walls
4. Both store their energy in the form of starch
5. Both have a two-part life cycle
What are the two main groups of plants?
What are 'non-vascular' plants?
Don't have any 'pipes' to transport water or nutrients. They depend on DIFFUSION and OSMOSIS to move materials from one part of the plant to the other
What is the typical size of a 'non-vascular' plant
What are 2 examples of a 'non-vascular' plant?
What are 'vascular' plants?
They have TISSUES that deliver the needed materials throughout the plant (like pipes delivering water in our house)
What are the "tissues" in vascular plants called?
What two groups are vascular plants divided into?
a) plants that produce seeds
b) plants that do NOT produce seeds
What are some examples of non-seeded vascular plants?
Ferns, Horsetails, Club Moss
What are the two types of 'seeded' vascular plants? (groups)
a) Flowering - ANGIOSPERMS
b) Non-flowering - GYMNOSPERMS