plants
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Plants. Pieces of Chapters 22-25 Pay attention to particular terms we go over so you know what is important. What role do plants play in a food web?. Plants vary significantly based on where they live in the world. Tropical Plants. Plants don’t always live peacefully together!. - PowerPoint PPT PresentationTRANSCRIPT
Plants
Pieces of Chapters 22-25
Pay attention to particular terms we go over so you know what is important.
What role do plants play in a food web?
Plants vary significantly based on where they live in the world.
Tropical Plants
Plants don’t always live peacefully together!
"Killer Plants"
What adaptations do plants need to live in a desert?
Desert Plants
Grassland Plants
Decidous Forests
Northern Conifer Forests
Plants grow slowly most of the time
time lapse plant growth time lapse plant growth w/ roots
True or False?
Some plant species are immortal. They only die when something from the outside kills them.
True!
Some of the Redwood trees in national forest in CA are over 1000 years old and still healthy
What are plants?
Multicellular Eukaryotes Autotrophs/photosynthetic Cell walls of cellulose nonmobile
What do plants need to survive?
Light Water and minerals Gas exchange (oxygen and carbon
dioxide) Ability to move water and nutrients
Major Groups of Plants we will Compare and Contrast
Bryophytes (ex. mosses) Gymnosperms (ex. pine trees) Angiosperms (ex. apple trees)
True/False
Plants can reproduce using sexual reproduction.
TRUE!
Pollen is the sperm, and the egg is protected in some way depending on the type of plant.
Angiosperms hide the egg in an ovary at the base of the flowers.
Bryophytes: Mosses
Short Must live near water No seeds Need less light and nutrients than larger
plants Nonvascular (no tubes to move water
and nutrients)
Gymnosperms: Pine Trees
Vascular (have tubes to move water and nutrients)
“naked” seeds protected by cones in many species
Wind pollination Can be very tall
WORDS TO KNOW
Gymnosperm Cone Pollination Seed Embryo Seed coat
Structure of a Seed
Angiosperms: apple trees
Vascular Flowers containing ovaries Animal pollination Seed contained inside a fruit
Words to Know
Angiosperm Fruit Monocot Dicot Annual perrenial
Annuals
Perrenials
Angiosperms: Monocots vs. Dicots
BAMBOO DOES NOT FLOWER OFTEN.
ONCE IT IS POLLINATED, THE “PARENT” BAMBOO PLANT DIES
AN ENTIRE BAMBOO FOREST CAN FLOWER AND DIE AT ONE TIME.
Words to Know
Vascular Xylem Phloem
Moving materials through a vascular plant
Xylem- “pipes” that move water
Phloem- “pipes” that move nutrients
Alternation of Generations: Plant sexual reproduction
Words to Know Diploid Haploid Mitosis Meiosis Sporophyte Spore Gametophyte Gamete Fertilization Zygote
The catch
In reality it is often difficult to know if a plant is a sporophyte or a gametophyte.
Tip: Any full grown tree or flowering plant is a sporophyte.
The gametophyte stage is simply a tiny structure ON the larger plant most of the time.