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Wake-up 1. W hat are three components plant cells have that animal cells do not? 1.What are some general characteristics of plants?
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Plant Anatomy and Physiology Watch Video
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Plants By: Manuel Alvarado Use this PowerPoint to fill in the chart at the top of the notes.
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Prokaryotic or Eukaryotic? Plants are Eukaryotic Eukaryotic means the organisms cells have a nucleus and other organelles.
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Unicellular or multicellular? Plants are Multicellular Multicellular means that all plants are made up of more than one cell
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Autotroph or Heterotroph? Plants are Autotrophs and get their own food through a process called photosynthesis Autotrophs are organisms that create their own food
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Interesting Facts The bamboo is the fastest growing plant in the world growing to at least 3 meters in just one day
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Interesting Facts Over 2000 plants are used by us to make food.
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Interesting Facts Plant remains at the bottom of any large body of water can eventually turn into coal due to metamorphosis
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Interesting Facts One bushel of corn can sweeten more than 400 cans of soda
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Interesting Facts A pineapple is actually a berry
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Examples Bamboo
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Examples Tobacco Plant
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Examples Venus Fly Trap
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Examples Poison Ivy
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Examples Cactus
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Early Plant Ancestors: Green Algae
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All were Aquatic
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Stipe: Holds plant upright Rhizoid: Anchors algae Chloroplast Vacuole Cell Wall Green Algae Structure
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Chloroplast VacuoleCell Wall True Roots Stem Leaf
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Rhizoid: Anchors algae Put down Roots Algae Absorb the water they need from surrounding; rhizoids anchor What did plants have to do to make the move to land?
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Put down Roots Plants Have roots which absorb water from soil
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What did plants have to to make the move to land? Develop a functional stem Algae Absorb what they need from their surroundings; Water holds them upright
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What did plants have to do to make the move to land? Develop a functional stem Plants Stem transports food and water throughout plant
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Rhizoid: Anchors algae What did plants have to do to make the move to land? Prevent Water Loss Algae Live in water; no need to control water; absorb what they need
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What did plants have to do to make the move to land? Prevent water loss Plants Developed a waxy outer layer to keep water inside
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What is the function of Roots?
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Absorb water and nutrients for the plant. Structure and support
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Two types of roots : Fibrous Many lateral roots branching from one main point
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Two types of roots : Tap One main root; lateral roots extending from the tap root
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What type of root? Fibrous
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What type of root? Tap
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What is the function of stems?
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Stems are the main highway for the transport of glucose and water. Vascular tissue makes up core of stems.
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Plant tissue: Vascular Location: Core of the stem
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Plant tissue: Vascular Function: Transports glucose and water throughout plants
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Components of Vascular Tissue: Phloem Transports glucose down throughout the plant. Glucose is made in the leaves of a plant. “Phloem down below em”
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Components of Vascular Tissue: Xylem Vascular tissue is used to transport materials throughout the plant. Xylem transports water up throughout the plant “Xylem to the skylem”
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What is the function of leaves?
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Leaves are the site of photosynthesis. Photosynthesis is the process in which plants capture energy from the sun and carbon dioxide to make glucose
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Leaf Structure Stem
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Leaf Venation: Net venation: veins are spread out on the blade in a net. Like the network of veins in our bodies. Parallel venation: veins are lined side by side (parallel) on the blade.
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Net Parallel
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Cuticle Found on the top side of leaves Waxy outer layer which prevents water from leaving the cell
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Stomata Found on the underside of leaves They are tiny openings that allow water and gases to move in and out the leaf.
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Stomata
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Plant Tissue: Dermal Location: Outer most layer of tissue. Function: Prevent water loss and protection
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Plant Tissue: Dermal Components: Cuticle Stomata
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Plant Responses: PhototropismPhototropism Plants response to light. Leaves will bend toward the light to maximum photosynthesis. Click on “Phototropism” for short video. Do not need headphones
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Gravitropism Plants response to gravity Positive Gravitropism: Roots grow down Negative Gravitropism: Stems grow against gravity Click on “Gravitropism” for short video. Do not need headphones
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Thigmotropism Plants response to touch Click on “Thigmotropism” for short video. Do not need headphones
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Plant Diagram Activity Read and following the directions on the Plant Diagram sheet. In picking out a plant, feel free to use anything and a young, responsible student would use. You can Google, “Clip Art Plants” to help you out. Make sure that it has roots, stems, and leaves. (No Cacti)
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