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Plants

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!.

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Plants

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  1. Plants Pieces of Chapters 22-25 Pay attention to particular terms we go over so you know what is important.

  2. What role do plants play in a food web?

  3. Plants vary significantly based on where they live in the world.

  4. Tropical Plants

  5. Plants don’t always live peacefully together! "Killer Plants"

  6. What adaptations do plants need to live in a desert? Desert Plants

  7. Grassland Plants

  8. Decidous Forests

  9. Northern Conifer Forests

  10. Plants grow slowly most of the time time lapse plant growth time lapse plant growth w/ roots

  11. True or False? Some plant species are immortal. They only die when something from the outside kills them.

  12. True! Some of the Redwood trees in national forest in CA are over 1000 years old and still healthy

  13. What are plants? • Multicellular • Eukaryotes • Autotrophs/photosynthetic • Cell walls of cellulose • nonmobile

  14. What do plants need to survive? • Light • Water and minerals • Gas exchange (oxygen and carbon dioxide) • Ability to move water and nutrients

  15. Origin of plants • Green algae

  16. Major Groups of Plants we will Compare and Contrast • Bryophytes (ex. mosses) • Gymnosperms (ex. pine trees) • Angiosperms (ex. apple trees)

  17. True/False • Plants can reproduce using sexual reproduction.

  18. 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.

  19. 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)

  20. 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

  21. WORDS TO KNOW • Gymnosperm • Cone • Pollination • Seed • Embryo • Seed coat

  22. Structure of a Seed

  23. Angiosperms: apple trees • Vascular • Flowers containing ovaries • Animal pollination • Seed contained inside a fruit

  24. Words to Know • Angiosperm • Fruit • Monocot • Dicot • Annual • perrenial

  25. Annuals • Perrenials

  26. Angiosperms: Monocots vs. Dicots

  27. 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.

  28. Words to Know • Vascular • Xylem • Phloem

  29. Moving materials through a vascular plant • Xylem- “pipes” that move water • Phloem- “pipes” that move nutrients

  30. Alternation of Generations: Plant sexual reproduction • Words to Know • Diploid • Haploid • Mitosis • Meiosis • Sporophyte • Spore • Gametophyte • Gamete • Fertilization • Zygote

  31. 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.

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