Plant Characteristics They make their own food –Chloroplasts contain chlorophyll –Chlorophyll absorbs energy from the sun –Plants use the energy to make food - glucose (sugar) –Process is called Photosynthesis
How are Plants Classified? There are more than 260,000 species of plants. They can be divided into two groups: –Nonvascular Phylum –Vascular Phylum
How are Plants Classified? Nonvascular Plants: –have no special tissue to transport water and nutrients –depend on diffusion and osmosis to move material from one part of the plant to another –They have to be small: mosses, liverworts
How are Plants Classified? Vascular Plants –Have tissues that deliver needed materials throughout a plant - called vascular tissues. –Can be almost any size. –Are divided into gymnosperms and angiosperms
How are Plants Classified? Gymnosperms -- “naked seed” non- flowering plants Angiosperms -- flowering plants
Vascular Plants Have a xylem and phloem –Xylem Hard wall cells that transport water and minerals Flows Upward –From roots Die every year Rings in a tree trunk
Vascular Plants Phloem –Soft-walled cells that transport organic nutrients –Travels downward Phloes downward! –This tissue is living and permanent –Primarily used for food transport
We know that plants produce flowers which have male and female organs. We know that seeds are formed when pollen from the male organ fertilises the female organ. We can label the parts of a plant and flower.