Plant '12

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    1. Multicellular Eukaryotes

    2. Have cell walls made of cellulose

    3. Carry out photosynthesis using

    chlorophyll a & b4. Store energy as starch

    (carbohydrates)

    5.

    Most are autotrophs A few are parasites (live on living

    organisms) or saprobes (live ondead organisms)

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    Parasitic plants extract nutrients and water

    directly from its hosts tissues

    After a (Cuscuta) Dodder attaches itself to a plant, it wraps itselfaround it. If the host contains food beneficial to dodder, thedodder produces haustoria that insert themselves into thevascular system of the host. The original root of the dodder in thesoil then dies. The dodder can grow and attach itself to multipleplants.

    Mistletoe takesnutrients from thetrees

    http://en.wikipedia.org/wiki/Haustoriahttp://upload.wikimedia.org/wikipedia/commons/7/7d/MistletoeInSilverBirch.jpghttp://en.wikipedia.org/wiki/Haustoriahttp://upload.wikimedia.org/wikipedia/commons/1/12/Cuscuta_parasite_plant.JPGhttp://upload.wikimedia.org/wikipedia/commons/c/c2/Cuscuta_europaea_2005.06.12_15.07.24.jpg
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    1. Sunlight

    2. Water

    3. Minerals

    4. Gas Exchange

    5. Transport of water and nutrients

    throughout the plant body

    Remember Photosynthesis:

    6H2O + 6CO2 C6H12O6 + 6O2(water + carbon dioxide + sunlight glucose + oxygen)

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    Plants most likely evolved from an

    organism like the freshwater multicelluar

    green algae living today.

    Plants had to overcome challenges asthey moved from water to land:

    Adapt to be able to acquire water

    Adapt features to transport water Be able to conserve water more

    effeciently

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    1. Bryophytes (Mosses and their

    relatives)

    2. Seedless Vascular (Ferns and their

    relatives)

    3. Gymnosperms (cone-bearing

    plants)

    4. Angiosperms (flowering plants)

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    Water-conducting tissue (vascular)

    Seeds

    Flowers

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    VASCULAR PLANTS Contain tube-like cellsfor transport (Tracheophytes) Can grow large and farther away from water source.

    NONVASCULAR PLANTS Does not containtube-like cells for transport. (Bryophytes) Water and nutrients travel by diffusion

    and osmosis.

    Small and grows close to water source

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    NONVASCULAR PLANTS

    Plants draw up water by osmosis only a fewcentimeters above the ground.

    Low growing plants that are found in

    moist, shaded areas.

    Seedless plants reproduce using spores

    RHIZOIDS A LONG THIN CELL THAT ANCHORS MOSS TOTHE GROUND AND ABSORBS H20 & MINERALS FROM SOIL

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    Includes: Mosses

    Liverworts

    Hornworts

    http://images.google.com/imgres?imgurl=http://static.howstuffworks.com/gif/irish-moss-1.jpg&imgrefurl=http://home.howstuffworks.com/irish-moss.htm&h=319&w=400&sz=58&hl=en&start=41&um=1&tbnid=VR8lHNFkPhWecM:&tbnh=99&tbnw=124&prev=/images?q=pictures+of+plant+moss&start=40&ndsp=20&um=1&hl=en&safe=active&sa=N
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    FERNS

    GYMNOSPERMS(CONE BEARING PLANTS)

    ANGIOSPERMS(FLOWERING

    PLANTS)

    http://images.google.com/imgres?imgurl=mnorris.wellington.net.nz/photos/fern.jpg&imgrefurl=http://mnorris.wellington.net.nz/photography.html&h=530&w=808&sz=106&tbnid=umN3Sm9YE8kJ:&tbnh=93&tbnw=141&prev=/images?q=FERN&hl=en&lr=&ie=UTF-8&oe=UTF-8&sa=N
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    They are vascular but reproduce using spores

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    Bear their seeds directly on the surface

    of cones.

    Vascular plants

    Gymnosperm means naked seed

    Includes conifers such as pines and spruces

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    Most conifers are evergreens. They retain their leaves

    throughout the year.

    Most needles stay on the

    plant for 2-14 years. Can carry on photosynthesis

    as soon as spring arrives!

    A few are deciduous. Deciduous - Lose their leaves at a

    particular season andare dormant in the winter.

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    http://images.google.com/imgres?imgurl=www.sccs.swarthmore.edu/users/99/maya/swat-flowers.gif&imgrefurl=http://www.sccs.swarthmore.edu/users/99/maya/photos.html&h=300&w=210&sz=43&tbnid=6wpAzvICXBUJ:&tbnh=110&tbnw=77&prev=/images?q=FLOWERS&start=20&hlhttp://images.google.com/imgres?imgurl=www.nedthecomputerguy.com/images/flowers.jpg&imgrefurl=http://www.nedthecomputerguy.com/photos.htm&h=480&w=640&sz=50&tbnid=utNM8Qzi6kgJ:&tbnh=101&tbnw=134&prev=/images?q=FLOWERS&hl=en&lr=&ie=UTF-8&oe=Uhttp://www.moonbowgraphics.com/lauriesphotogallery/flowers/flowerbunchsmall.jpghttp://www.moonbowgraphics.com/lauriesphotogallery/flowers/wildsunflower.jpghttp://www.moonbowgraphics.com/lauriesphotogallery/flowers/purppetunbunch.jpghttp://images.google.com/imgres?imgurl=www.moonbowgraphics.com/lauriesphotogallery/flowers/pinkrose3.jpg&imgrefurl=http://www.moonbowgraphics.com/lauriesphotogallery/flowers/photogalleryflowers1.html&h=392&w=369&sz=33&tbnid=SoXue-xZa5wJ:&tbnh=118&tbnw=112&prev
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    Can be classified as: Annuals

    Biennials

    Perennials

    Annuals live only one growing season

    Biennials live only two growing season

    Perennials live for more than two years

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    Roots absorbs water and dissolved

    nutrients, anchors the plant, protect the

    plant from bad soil, and transports water to

    rest of the plant

    Stems support system for the plant body,

    transport system for water and nutrients

    Leaves plants main photosynthetic system

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    Desert Plants

    Root system

    Shallow to obtain water

    Reduced leaves

    Cactus needlesreduced surface area

    Thick stems To store water

    Dormant Seeds

    Germinate only when enough moisture

    present

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    Life in the water: Have tissues with large air-filled

    spaces through which oxygen can

    diffuse down the stem Seeds that

    float and delay germination Specialized air roots that allow O2 to

    get to the roots down in the mud

    Salty conditions:

    Specialized cells in the leaves thatpump the salt out of the plant tissue

    onto the leaf surface where rain

    washes it off

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    Poor soil:

    If the soil cant provide N2,

    plants trap and digest insects

    that release N2

    Plants without Roots:

    Live on body of another plant

    No roots live in a humid

    environment to retain/store

    water from rainfall

    Spanish

    Moss

    Venus FlyTrap

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    Fighting insects:

    Make/secrete chemicals that are

    toxic if eaten

    Need for Pollination

    Plants will mimic a pollinators mate

    Milkweed

    Waspattemptingto mate with

    the flower

    Ophrysspeculummimics afemale

    wasp

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    Monocots

    One seed leaf

    Parallel veins in leaves

    Flower parts in multiples of threes Ex. Grass, orchids

    Dicots

    Two seed leaves

    Contain netted veins Flower parts in multiples of four or fives

    Exs trees, shrubs

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