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Plants…an Overview!. Importance of Plants:. Agriculture Prevention of Soil Erosion Medicines Mental Health Clothing & Dyes Climate Control Fuels Tourism Decoration & Privacy Hobby. Classifying Plants:. -Aquatic or Terrestrial -Prevention of Water Loss -Spores or Seeds
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Importance of Plants: Agriculture Prevention of Soil Erosion Medicines Mental Health Clothing & Dyes Climate Control Fuels Tourism Decoration & Privacy Hobby
Classifying Plants: -Aquatic or Terrestrial -Prevention of Water Loss -Spores or Seeds -Vascular or Nonvascular
Nonvascular Plants: -mostly terrestrial -produce spores -need water to reproduce -very small plants Phyla: Bryophyta…mosses Hepatophyta…liverworts Anthocerophyta…hornworts
Vascular Seedless Plants: -have xylem and phloem -spores -can grow larger than nonvascular plants Phyla: Psilophyta…whisk ferns Lycophyta…club mosses Sphenophyta…horsetails Pteridophyta…ferns
Vascular Seed Plants: -Gymnosperm Angiosperm -have xylem and phloem -seeds (unprotected vs. protected) -nonflowering & flowering -can grow larger than nonvascular plants Phyla: Cycadophyta…Cycads (gymnosperm) Ginkgophyta…Gingkoes (gymnosperm) Coniferophyta…Conifers (gymnosperm) Gnetophyta…Cone-bearing, odd (gymnosperm) Anthophyta…Flowering (angiosperm)
Major Plant Structures: 1. Roots -Tap -Fibrous -Adventitious -Root Hairs
2. Stems -woody -herbaceous -stolons -tubers -fleshy
3. Leaves -guard cells -stomata
4. Flowers -pollination -fertilization -seeds and fruits