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Tropism
Tropisms
Objective 16
Plants change their
patterns and directions
Growth in
of ___________
response to their
Environmental
Conditions
_________________.
Tropisms
Objective 16
***Diagram the way the corn seeds were placed in
the petri dish. How did the roots of the corn seeds
grow?
Tropisms
Objective 16
The responses of plants to _______________
environmentalstimuli
are called tropisms.
Gravitropism—the response of a plant to __________;
gravity
plants
grow _________ gravity(against
)
up
Tropisms
Objective 16
Phototropism—the response of a plant to ________;
Light
Towards
plants
grow ____________ light.
A group of plant hormones
Auxins are involved
Called __________
In many plant responses.
Flowers Structures
Flowers
Objectives 14-15, 17
Sexual Reproduction--the main angiosperm
Flower
reproductive organ is a _______________.
Flowers
Objectives 14-15, 17
Flower
4 main parts of a _________________:
• Sepals-- ________________
flower parts and encloses
Outer
the ____________.Bud
Pollinators
• Petals-- attracts _________________.
Male
• Stamens-- ________________
reproductive structure.
Anther—produces _________________ grains
(contain _____________).
Pollen
sperm
Filament—supports _____________.
anther
Flowers
Objectives 14-15, 17
Female
• Pistils (Carpels)-- ________
reproductive structure.
Stigma—collects ___________.
Pollen
Style—supports ___________.
Stigma
Ovary—contains _________.
eggs
Flowers
Objectives 14-15, 17
Stigma
Style
Ovary
Eggs
Pistil
Anther
Filament
Sepal
Petal
Flowers
Objectives 14-15, 17
Monocots have flower parts in multiples of _____,3
4 or 5
whereas dicots have multiples of ________.
Flowers
Objectives 14-15, 17
Role of Pollinators
Animals
Most angiosperms are pollinated by __________.
This is an example of a ______________
Mutualistic
relationship.
Ex: Bees get nectar : plant gets Pollinated
• Other methods of
wind
pollination: