Download - Plant Kingdom PowerPoint
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What makes a Plant a Plant?What makes a Plant a Plant?
Plant Characteristics
How are Plants Classified
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Plant CharacteristicsPlant 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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Chloroplasts:Chloroplasts:
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PlantPlant CharacteristicsCharacteristics
• Plants Have a Cuticle
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What is a Cuticle?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.
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PlantPlant CharacteristicsCharacteristics
• Plant Cells have Cell Walls
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What is a Cell WallWhat 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
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Plant CharacteristicsPlant Characteristics
• Plants reproduce with spores and sex cells– there are two stages in a plants life:
•sporophyte
•gametophyte
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What is a Sporophyte?What is a Sporophyte?
• A plant in the spore producing stage of life.
• Spores can grow directly into an adult plant
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What is a Gametophyte?What is a Gametophyte?
• The stage in a plant’s life where it produces male and female sex cells.
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More on GametophytesMore on Gametophytes
• Male and female sex cells must join in order to grow into a new plant. This is called Fertilization.
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How are Plants Classified?How are Plants Classified?
• There are more than 260,000 species of plants.
• They can be divided into two groups:– Nonvascular
– Vascular
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How are Plants Classified?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
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Liverwort:Liverwort:
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Mosses:Mosses:
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How are Plants Classified?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
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How are Plants Classified?How are Plants Classified?
• Gymnosperms -- non-flowering plants
• Angiosperms -- flowering plants