Plant Anatomy

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Plant Anatomy Vegetative and Reproductive Structures

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Plant Anatomy. Vegetative and Reproductive Structures. What are vegetative structures (parts) and the Vegetative Stage of a Plant?. Vegetative plant parts of the plant that help it to through its daily processes. - PowerPoint PPT Presentation

Transcript of Plant Anatomy

Page 1: Plant Anatomy

Plant Anatomy

Vegetative and Reproductive Structures

Page 2: Plant Anatomy

What are vegetative structures (parts) and the Vegetative Stage of

a Plant?

• Vegetative plant parts of the plant that help it to through its daily processes.

• The vegetative stage is when the plant is growing and not ready or getting ready for reproduction.

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What are reproductive structures (parts) and the reproductive stage

of plants?• The reproductive parts of a plant are the

plant structure used for sexual reproduction (making more plants).

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Main Parts of a Leaf

Tip/Apex

Midrib

Margin

Veins

Base

Petiole

Blade

Leaf

Courtesy of Corinne Banowski

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Leaf Forms

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Leaf Veination

Dichotomous Veination

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Types of Leaves

Needle like leaves

Scale like leaves

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Internal Parts of A LeafPetiole

Blade

CuticleUpper EpidermisPalisade Mesophyll

VeinSpongy Mesophyll

Lower Epidermis

Guard CellStomataAir

Spaces

Stoma, singular

Courtesy of Wm. C. Brown Publishers

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Leaf Attachments

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Leaf Function

• Photosynthesis– Make food (sugar

“glucose”)

• Store water• Reproduce• Protect

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Modified Leaves

• Bulbs

• Bracts

• Spines

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External Stem Anatomy

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Internal stem anatomy

Monocots=grasses, palm trees, corn, ect…

Dicots=trees, shrubs, “leafy” ect…

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Function of Stems

• Transport (food down, water up)

• Support (hold up leaves)

• Store (food and water)

• Protect (thorns)

• Reproduction (stolons)

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Modified Stems

• Thorns

• Stolons

• Tuber

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Root Anatomy

• Primary root: The first root to emerge from a seed

• Secondary root: Roots that branch off of that root

Function

•Absorb water

•Anchor plant

•Store food and water

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Flowers

• Used for sexual reproduction

• They make seeds

• Some are male, Some are female and some are both.

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Parts of a Flower

StamenAnther

Filament

PetalsSepals

Pedicel

Stem of the flower

Ovule

Receptacle

Swollen base where are parts attach

Stigma

Style

Ovary

Pistil

Courtesy of McGraw Hill Publishers

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Pollination

• Pollen (male) lands on female flower and fertilizes egg/ovule (female) and then makes seeds

• Pollinators Wind, insects (bees, ants, flies, ect…), bats, birds, butterfly) ect…

• Cross pollination: between separate plants

• Self pollination: pollinates itself

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Types of flowers

• Perfect: have stamen and pistol (both sexes, hermaphrodite)

• Imperfect: missing a male or female part

• Complete: has everything

• Incomplete is missing something, anything.