Monocot vs. dicot seeds - · PDF file · 2012-11-30Monocot vs. dicot seeds...
Transcript of Monocot vs. dicot seeds - · PDF file · 2012-11-30Monocot vs. dicot seeds...
Monocotvs.dicotseeds
endosperm
cotyledon
Func4ons:Seedcoat–protec4onCotyledon–embryothatdevelopsintoplantEndosperm–providesnutrientsforplantbeforephotosynthesiscanbegin
Exactpicture
Monocotvs.dicotleaves
monocot dicot
Maybeadifferentpicture
Parallelveinsbranchedveins
Monocotvs.dicotflowersmonocot dicot
Maybeadifferentpicture
3petalsperwhorl4‐5petalsperwhorl
Monocotvs.dicotstemsmonocot
dicot
Maybeadifferentpicture
Vascular4ssuespreadthroughoutVascular4ssueformsanouterring
Stoma Guardcellstoma
Func4ons:Stoma–allowsgasesintoandoutoftheplantGuardcells–regulatetheopeningandclosingofstoma
Maybeadifferentpicture
Leafcrosssec4on
xylem phloem
Stoma/guardcells
Vascularbundle
Func4ons:Xylem–carrieswaterPhloem–carriesnutrients
Exactpicture
Dicotstem
Exactpicture
Func4ons:Seepreviousslide
Partsoftheflower
• A=anther• B=Filament
• C=S4gma
• D=style• E=ovary
petals
sepals
stamen
carpel
Func4ons:Anther–producespollenFilament–structuralsupportfortheantherS4gma–s4ckypartwherepollenbindstoStyle–wherethepollentubegrowsdownOvary–eggsareproduced
Maybedifferentpicture
Sponges
spicule
Func4ons:Spicule–providestructuralsupportanddefense
Maybedifferentpicture
Hydratentacles
mouth
Gastriccavity
stalk
ATachmentdisk
Exactpicture
Func4ons:Tentacles–capturepreyMouth–wherefoodentersGastriccavity–wherefoodisdigestedStalk–supportATachmentdisk–wherehydraaTachtoasubstrate
Planaria
eyespots
head
auricle
Gastrovascularcavity
Func4ons:Head–detectsmostsensoryinforma4onEyespots–detectlightSensorylobe(auricle)–detectschemicalsandtouchGastrovascularcavity–digestsfoodMouth–wherefoodentersPharynx–wherefoodispassedfrommouthtogastrovascularcavity
Nematoda
Func4ons:Spermduct–wherespermmaturesTes4s–wherespermismadeAnus–wherewastesareexcretedIntes4ne‐diges4on
Excretorysystem–wherenitrogenouswastesareexcretedOvary–whereeggsaremadeUterus–wherefer4lizedeggsmature