Transcript Courtesy of Wm. C. Brown Publishers

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.
• The vegetative stage is when the plant is
growing and not ready or getting ready for
reproduction.
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).
Main Parts of a Leaf
Tip/Apex
Midrib
Blade
Margin
Leaf
Veins
Base
Petiole
Courtesy of Corinne Banowski
Leaf Forms
Leaf Veination
Dichotomous Veination
Types of Leaves
Scale like leaves
Needle like leaves
Petiole
Internal Parts of A Leaf
Blade
Cuticle
Upper Epidermis
Palisade Mesophyll
Vein
Spongy Mesophyll
Lower Epidermis
Air
Spaces
Stomata
Guard Cell
Stoma, singular
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Wm. C. Brown
Publishers
Leaf Attachments
Leaf Function
• Photosynthesis
– Make food (sugar
“glucose”)
• Store water
• Reproduce
• Protect
Modified Leaves
• Bulbs
• Bracts
• Spines
External Stem Anatomy
Internal stem anatomy
Monocots=grasses, palm trees, corn, ect…
Dicots=trees, shrubs, “leafy” ect…
Function of Stems
•
•
•
•
•
Transport (food down, water up)
Support (hold up leaves)
Store (food and water)
Protect (thorns)
Reproduction (stolons)
Modified Stems
• Thorns
• Stolons
• Tuber
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
Flowers
• Used for sexual reproduction
• They make seeds
• Some are male, Some are female and
some are both.
Parts of a Flower
Stamen
Anther
Stigma
Filament
Style
Ovary
Ovule
Petals
Sepals
Stem of the flower
Pedicel
Courtesy of McGraw Hill Publishers
Receptacle
Swollen base
where are parts
attach
Pistil
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
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.