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Published byElmer Chandler Modified over 7 years ago
What is a Plant? Multicellular and Eukaryotic
Have cells walls made of cellulose
Carry out photosynthesis (autotrophs)
Examples: Trees, shrubs, grasses, mosses, ferns, flowering plants, etc.
What a plant needs to survive Sunlight for photosynthesis
Water & Minerals
Gas exchange of oxygen & carbon dioxide for respiration & photosynthesis
Ability to move water & nutrients throughout the plant
PARTS OF A PLANT STEMS Produce leaves, branches & flowers
Hold leaves up to the sunlight
Transport substances between roots and leaves (through veins)
PARTS OF A PLANT Veins in a plant are called VASCULAR TISSUE
There are 2 types of Vascular Tissue: 1. Xylem – transports water from roots to the rest of the plant
2. Phloem – transports sugars and other nutrients throughout a plant
VEINS - CARRY WATER, MINERALS AND SUGARS THROUGH THE PLANT
THREE TYPES OF VENATION: PINNATE PALMATE PARALLEL
ROOTS –absorb water and nutrients and anchor the plant to the ground
TWO TYPES OF ROOTS: FIBROUS (Clump of short, threadlike roots) TAPROOT (Single, large central root)
Leaves – where light is absorbed and photosynthesis is carried out BLADE VEIN PETIOLE
Types of Leaves Simple LeafCompound Leaf
Leaves Stomata are pores or holes in the epidermis of the leaf that allow gas exchange
Carbon dioxide comes in through the opening and oxygen leaves through the pore This is important for photosynthesis to occur
Guard cells on each side of the stomata control its opening and closing
Water is also lost through the stomata in a process called transpiration, so plants only leave stomata open long enough to do photosynthesis
Picture of Stomata & Guard Cells Label this picture on your paper
More Pictures of Stomata Above: Diagram of how stomata open and close Below: Real picture of stomata
3 TYPES OF PLANT TISSUES DERMAL – protection for the plant (waxy coating)
VASCULAR – transport tissue XYLEM PHLOEM
GROUND TISSUE – contains cells that perform photosynthesis
PLANT NAMES PLANTS ARE OFTEN NAMED BY WHAT THEY LOOK LIKE:
WHY WE NEED PLANTS WE ARE DEPENDENT ON PLANTS FOR: 1. OXYGEN PRODUCTION 2. FOOD SOURCE – WE RELY ON PRODUCERS
TYPES OF TROPISMS (PLANT RESPONSES)
1. Phototropism Process where plants respond to light stimulus by growing in the direction of available light Leaves and stems respond positively to light, meaning that they grow toward it A plant’s roots respond negatively to light, growing away from it
2. Thigmotropism Process where plants respond to touch or physical contact with an object Some plants respond to touch or other stimuli, such as a high wind, by folding up their leaves A vine’s roots exhibit a positive response to touch when their roots cling to the side of a building or their tendrils wrap around an object
3. Geotropism Process where a plant responds to gravity Roots have a positive response to gravity and grow downward into the soil Leaves and stems have a negative response to gravity and grow upward against its effects.
Examples of Tropism Thigmotropism Geotropism Phototropism
Photo sites http://static.howstuffworks.com/gif/house-plants-1.jpg http://www.fairfield.k12.ct.us/tomlinson/ctomlinson03/CellProject04/Per3/3ER/cellulose.jpg http://www.hln-store.com/catalog/photos.gif http://tocommish.googlepages.com/Trees.jpg/Trees-large.jpg http://tommyimages.com/Stock_Photos/Scandinavia/Iceland/Volcanoes_Lava_Formations/slides/Iceland_04_E_1_35-Moss_Lava_Field.jpg http://discovermagazine.com/photos/flowering-plants-secret-weapon/key_image http://www.cdr3.com/azaleas/AZA_RED.GIF http://kmacphoto.net/ferns.jpg http://www.treehugger.com/plants-sunlight.jpg http://www.eniva.com/Exigo/photos/vibe1_pic1.jpg http://wiserwormfarm.com/Worm_Castings.jpg http://www.cheme.washington.edu/images/cent/fertilizer_spraying.jpg http://www.acsa2000.net/sites/10ba/Photosynthesis.jpghttp://www.cartage.org.lb/en/themes/Sciences/BotanicalSciences/PlantHormones/PlantHormones/casparianstr.jpg http://www.arborcentre.co.uk/images/roots.jpg http://upload.wikimedia.org/wikipedia/en/thumb/5/57/Stem_nodes.jpg/350px-Stem_nodes.jpg http://z.about.com/d/landscaping/1/0/m/C/red_stem.jpg http://www.wellcome.ac.uk/en/bia/images/17.jpg http://botit.botany.wisc.edu/images/130/Secondary_Growth/Woody_Stems/Tilia_Stem/Secondary_Growth/pith_xylem.low.jpg http://www.biologie.uni-hamburg.de/b-online/library/webb/BOT311/Roots/SmilaxRotMaturePhloemXylem300.jpg http://pro.corbis.com/images/42-18830649.jpg?size=67&uid=%7BAF174524-EDB7-4225-B654-684DD7B66B1A%7D http://biog-101-104.bio.cornell.edu/bioG101_104/tutorials/botany/images/stomata1.JPEG http://www.marietta.edu/%7Espilatrs/biol103/photolab/gardcel1.gif http://www.tvdsb.on.ca/saunders/courses/online/SBI3C/Plants/leaves-guard_cell.JPG http://ga.water.usgs.gov/edu/pictures/wctranspirationleafsoil.jpg http://www.umanitoba.ca/Biology/lab9/images/tiliastem.gif http://www.progressivegardens.com/knowledge_tree/tissue.jpg http://www.fdl.uwc.edu/arboretum/images/browneyedsusanweb.jpg http://www.pipersdream.com/Sunflowers/sunflower3.jpg http://www.desotostatepark.com/photogallery/wildflowers/white%20milkweed.jpg http://www.gov.mb.ca/agriculture/crops/weeds/images/fab50s00m.jpg http://www.theflowerexpert.com/media/images/aboutflowers/wildflowers/winecup.jpg http://pages.prodigy.net/jospencer/wine.jpg http://www.chesapeakebay.net/images/cattails.jpg httphttp://www.exoticindiaart.com/artimages/weepingwillow_sm.jpg ://www.smwholesaleflowers.com/catalogimages/cattails400x400.jpg
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