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What makes a Plant a Plant?

What makes a Plant a Plant?. Plant Characteristics How are Plants Classified. 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.

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What makes a Plant a Plant?

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  1. What makes a Plant a Plant? Plant Characteristics How are Plants Classified

  2. 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

  3. Chloroplasts:

  4. PlantCharacteristics • Plants Have a Cuticle

  5. What is a Cuticle? • A waxy layer that coats the surface of stems, leaves, and other plant parts exposed to the air. • Keeps plants from drying out.

  6. PlantCharacteristics • Plant Cells have Cell Walls

  7. What is a Cell Wall • a plant cell is surrounded by a rigid cell wall • outside of the cell membrane • helps support and protect the plant

  8. Plant Characteristics • Plants reproduce with spores and sex cells • there are two stages in a plants life: • sporophyte • gametophyte

  9. What is a Sporophyte? • A plant in the spore producing stage of life. • Spores can grow directly into an adult plant

  10. What is a Gametophyte? • The stage in a plant’s life where it produces male and female sex cells.

  11. More on Gametophytes • Male and female sex cells must join in order to grow into a new plant. This is called Fertilization.

  12. How are Plants Classified? • There are more than 260,000 species of plants. • They can be divided into two groups: • Nonvascular • Vascular

  13. How are Plants Classified? • Nonvascular Plants: • have no pipes 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

  14. Liverwort:

  15. 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

  16. How are Plants Classified? • Gymnosperms -- non-flowering plants • Angiosperms -- flowering plants

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