Plants

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Plants
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• All plants are multicellular
• All plants are eukaryotes
• All plants have a cell wall

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• All plants are autotrophs
• They produce energy through the process called
  photosynthesis
• The formula for photosynthesis is
• 6CO26H2Osunlight -gtC6H12O6 6O2

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• There are two main types of plants, non-vascular
  and vascular

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• Non vascular plants do not have vascular tissue
  to carry the nutrients and water throughout the
  plant
• They must live in water or moist surroundings
• They are usually small and grow close to the
  ground
• They do not have roots

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• Mosses, hornworts and liverworts are examples of
  nonvascular plants

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Hornworts, Liverworts and Mosses
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• Vascular plants have vascular tissue
• Vascular tissue is small tubes inside the plant
  that transport food and water through the plant

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• There are two types of vascular tissue, phloem
  and xylem
• Xylem moves water and nutrients from the roots up
  to the plant.
• Phloem moves nutrients produced by photosynthesis
  down from the leaves to the rest of the plant

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• Plants have three main organs

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• Leaves

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• Stems

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• Roots

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• The leaves function is to capture sunlight and
  perform photosynthesis
• The stems function is to support the plant and
  provide a place through which water and nutrients
  move
• The roots anchor the plant to the soil and absorb
  water and nutrients from the soil

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• All plants have sexual reproduction
• Some plant have flowers, others do not
• Plants that do not have flowers are called
  Gymnosperms
• Conifers, ginkgos and cycads are examples of
  Gymnosperms

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• Conifers

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• Giant sequoia

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• Gingko

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• cycad

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• Plants that have flowers are called Angiosperms

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Angiosperm
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• Flowers have male and female parts
• The male part is called the stamen
• The stamen is made of the anther and the filament
• The anther produces pollen

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• Pollen is sometimes spread by birds, bats,
  insects or wind

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Bee
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Hummingbird
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• The female part is called the pistil
• It is made of the stigma, style and the ovary
• Inside the ovary are ovules which when
  fertilized, will mature into seeds

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• All living things on Earth are dependent on
  plants for their existence.
• We depend on them for food and for oxygen