Floral Anatomy Flashcards
(29 cards)
Anther
The head on the filament
Filament
The long thin part of the male reproductive system
Stigma
The head of the style
Style
The tube leading down to the ovary
Petal
Ring of brightly colored, leaf shaped parts of a flower
Ovary
Where the ovules are
Ovules
The eggs in the ovary where the sperm goes and which forms into seeds
Sepal
Outermost ring of modified leaves that protects the flower bud
Receptacle
Where the stem turns into the sepal
Stamen
Male reproductive structures; produces pollen.
Consists of an anther at the tip of the filament
Pistil
Female reproductive part; produces eggs
Consists of stigma, style and ovaries.
How do the sperm meet the ovules?
Pollen spores from a different plant land on the stigma, travels down the style through a tube it made until it hits an ovule. Ovule later forms a seed.
Flowers
The purpose is to attract insects. They produce nectar, fluid which contains sugar.
Leaves
Make food for the plant; chloroplasts capture energy from sunlight; absorb CO2 from the air; use energy to make simple sugar
Leaf structure
Outer surface covered by a cuticle
Epidermis
Single layer of cells beneath cuticle; contains stoma
Cuticle
A waxy layer on top of the leaf which keeps the plant from drying out
Stoma
Tiny openings that let CO2 enter the leaf
Guard cells
They open and close the stomata allowing water and CO2 in
Stem function
Connects roots to leaves and flowers; supports the plant; transports and sometimes stores materials
Herbaceous stem
Soft, thin and flexible: tomatoes, corn, wildflowers
Woody stem
Rigid, made of wood and bark; plant is dormant in Winter
Root Function
Supply plants with water and dissolved materials; hold plants securely in soil; store surplus food
Root cap
End of root; hard surface that protects the tip
