T. Trimpe 2010

Flower Basics

1. Label the parts of the flower.

Image: http://www.smithlifescience.com/SciFlowerDiagramBlank.jpg

Petals

StamenAnther

Filament

PistilStigma

Style

Ovule

Ovary

Sepal

“Our Flowering

World”

2. Identify each part of the flower described below using the words in the word list.

_________________ - The female part of a flower

_________________ - A small plant that is just starting to grow

_________________ - The place where pollen develops and is stored

_________________ - The female sex cell in a plant

_________________ - Occurs when the sperm and egg cells unite

_________________ - A sugary substance that attracts insects

_________________ - The male sex cell in a plant

_________________ - The male part of a flower

_________________ - The stalk that supports the anther

_________________ - The part of the pistil that receives the pollen

_________________ - Part that connects the stigma and ovary

_________________ - Protective leaf-like enclosure for the flower bud

_________________ - The ripened ovary of a plant that contains seeds

_________________ - Flower that contains both male and female parts

_________________ - Flower that lacks either male or female parts _________________ - The structures that make up the outside of the flower and maybe

colored or contain nectar or perfume glands

Word List:Anther

FertilizationFilament

FruitImperfect

NectarOvaryPerfectPetalsPistil

PollenSeedlingSepalsStamenStigmaStyle

PISTIL

SEEDLING

ANTHER

OVARY

FERTILIZATION

NECTAR

POLLEN

STAMEN

FILAMENT

STIGMA

STYLE

SEPAL

FRUIT

PERFECT

IMPERFECTPETALS

AntsBatsBees

Moths Birds

ButterfliesFlies

BeetlesTrue Bugs

Wasps

Pollinators

Did you know? Honey bees are the most

common pollinators. What insect comes in second place?

SELF-POLLINATION: POLLEN FROM A FLOWER LANDS ON THE PISTIL OF THE SAME FLOWER OR A FLOWER ON THE SAME PLANT.

CROSS-POLLINATION: POLLEN FROM A FLOWER LANDS ON THE PISTIL OF THE A FLOWER ON A DIFFERENT PLANT.

3. What is the difference between self-pollination and cross-pollination?