Plant Anatomy

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Plant Anatomy

• 7th Grade Biology

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But not these kinds of plants
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Stem

• Provides structure for the plant

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Vascular Tissue

• Xylem
• The xylem transports water from the root up the
  plant. The xylem is mainly responsible for the
  transportation of water and mineral nutrients
  throughout the plant.
• Phloem
• Phloem is the living tissue that carries organic
  nutrients, particularly sucrose, a sugar, to all
  parts of the plant where needed.

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Vascular Tissue
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Node and Internode

• Node
• the place on a plant stem where a leaf is
  attached (like an intersection)
• Internode
• a portion of a stem between nodes.

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Leaf

• A leaf is an above-ground plant organ specialized
  for photosynthesis.
• Blade
• Petiole
• Vein

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Leaf Cross Section

• Cuticle
• Epidermis
• Mesophyl
• Palisade Layer

• Spongy Layer
• Stoma
• Stomata
• Guard Cell

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Leaf Cross Section
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Leaf Cross Section
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Roots

• The root is the organ of a plant that usually
  lies below the soil in order to absorb water and
  organic nutrients as well as anchor the plant to
  the soil.

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Roots

• Root Tip
• Root Cap
• Root Hair

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Roots
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Roots

• Monocot Gymnosperms Dicot

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Flowers

• What are flowers?
• The sex organs of the plant
• All flowers bare fruit.

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Flowers
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Flowers

• Male Parts of the flower
• Stamen
• Anther
• In a flower, the terminal part of a stamen in
  which the pollen grains are produced.
• Filament
• The shaft that holds up the anther

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Flowers

• Female Parts of the Flower
• Pistil
• Stigma
• The landing area for pollen
• Style
• Is the shaft that holds up the stigma
• Ovary
• Holds the Eggs

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Pollen

• Male sex cells of the plant

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Pollination

• When the pollen contacts the stigma

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Spores

• A spore is a reproductive structure that is
  adapted for dispersion and surviving for extended
  periods of time in unfavorable conditions. The
  main difference between spores and seeds is that
  spores have very little stored food resources
  compared with seeds.

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Seeds

• Seed Coat Covering that protects the seed
• Embryo Baby plant
• Endosperm Surrounds the embryo and provides
  nutrition in the form of starch, though it can
  also contain oils and protein.
• Cotyledon Seed leaves

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Seeds

• Monocot Dicot

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Seeds

• Seeds are better off if they get way from
  parents so they dont have to compete.
• Explosives
• Parachutes
• Helicopter
• Jet Propulsion
• Hitch a ride Velcro
• Inside an animal

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Seeds

• Seeds may sit dormant for a season or 200 years
  like the lotus or even 10,000, like the seeds
  found in the stomach of a mastodon!
• They only sprout when the conditions are right.
• Water
• Temperature

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Transpiration

• Transpiration is the evaporation of water from
  the aerial parts of plants, especially leaves but
  also stems, flowers and roots.

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Thigmotropism

• Thigmotropism is a movement in which an organism
  moves or grows in response to touch or contact
  stimuli.

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Photosynthesis

• Photosynthesis is the conversion of light energy
  into chemical energy by living organisms. The raw
  materials are carbon dioxide and water, the
  energy source is sunlight, and the end-products
  include glucose (sugar) and oxygen.

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Botanist

• Botany is the scientific study of plant life. As
  a branch of biology, it is also called plant
  science
• A Botanist is a person that studies botany.

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Gymnosperm

• Gymnosperm means "naked seed
• They are the first seed producing plants
• They are the
• Conifers (pine trees)
• Gingko (no known close living relatives)
• Cycads

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Angiosperm

• Angiosperm means container seeds
• They produce Fruit
• They are the most widespread group of land
  plants.
• They are the Flowering Plants

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Monocot / Dicot Differences

• Seeds
• Flower Parts
• Leaves
• Vascular Bundles
• Roots?

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Vegetative Reproduction

• Vegetative reproduction is a type of asexual
  reproduction found in plants also called
  vegetative propagation or vegetative
  multiplication. It is a process by which new
  plant "individuals" arise or are obtained without
  production of seeds or spores.

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We shouldnt forget General Sherman!
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but not this General Sherman!
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General Sherman!

• General Sherman is a Giant Sequoia! One of the
  largest trees in the world, It is believed to be
  approximately 2200 years old. Sherman is about
  275 feet tall and 100 feet around at the base.

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The Significance of Plants

• Oxygen
• Grain / Bread
• Fruit
• Veggies
• Medicines
• Cloths
• Tea

• Weapons
• Flowers
• Wine
• Tires
• Spice
• Dyes
• Building Materials
• Paper

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Did you take notes?
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Are your Plants thirsty?
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Dont forget to water them!
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