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Chapter 8 Plants: Section 1

Chapter 8 Plants: Section 1. By Mrs. T. Your feet are permanently encased in a block of concrete. YOU CAN NOT MOVE AROUND! What would you need & do to ensure survival?. THINK ABOUT IT!. Plants:. Plants are much like us with our feet encased in concrete… They can not move around.

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Chapter 8 Plants: Section 1

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  1. Chapter 8 Plants: Section 1 By Mrs. T.

  2. Your feet are permanently encased in a block of concrete. YOU CAN NOT MOVE AROUND! • What would you need & do to ensure survival? THINK ABOUT IT!

  3. Plants: • Plants are much like us with our feet encased in concrete… • They can not move around. • They must have water to survive. • They must have nutrients to live. • They must have a way to stand tall in order to obtain sunlight. • They must have a way for water & nutrients & food to reach all parts of the plant.

  4. Origin: Where did Plants Come from? • Which organisms did land plants evolve from? How did it all begin? BRAINSTORM • Scientists studied ____________ or dead life forms preserved in rock • The oldest plant fossils are _____million years old! Wow! FOSSILS 400

  5. Where did Plants Come From? ALGAE • Land plants & green ________ contain the same kind of chlorophyll. • Biologists believe land plants formed from ancient types of __________. • Algae is not in the Plant Kingdom – it is a PROTIST. ALGAE

  6. WHAT IS A PLANT?3 CHARACTERISTICS MULTICELLULAR AUTOTROPHS CELL WALL EUKARYOTES

  7. IMAGINE: YOU ARE AN ALGAE • In order to survive you need water, nutrients, sunlight and a way to reproduce. • You get both __________ and ___________ from the ocean, lake, pond, creek that you are floating in. • Your body is small so you are able to transport water and nutrients easily throughout your body. • How do you stay in contact with the sun? You __________. • Reproduction? How does the sperm travel to the egg? It swims in the ________. NUTRIENTS WATER FLOAT WATER

  8. What Adaptations would you need to Move onto the Land? water nutrients soil waterproof water tubelike transport vascular Cell walls support reproduce zygote

  9. Two Kinds: NONVASCULAR PLANTS Click me Click me Click me • 1.Lack a well developed system of ________ for transporting water and other materials. • 2. They are low __________ and do not have _______ for absorbing water from the ground. • 3. Most live in damp, ______ places. • 4. Most have only thin cell ___________. So, they are unable to grow very tall. TUBES ROOTS GROWING SHADY next WALLS

  10. Mosses back

  11. Liverwort back

  12. Hornwort back

  13. Vascular Plants • 1. Better suited to life in _________ areas. • 2. Vascular tissue provides __________, __________, and _____________ to a plant. • 3. Thus, vascular plants are able to grow quite ___________. DRY STRENGTH SUPPORT STABILITY TALL

  14. Plant Life Cycle • Stage 1: Sporophyte (SPOH ruhfyt) Stage • Production of SPORES tiny cells that grow into new organisms • Stage 2: Gametophyte (guhMEE tuhfyt) Stage • Plant produces two kinds of cells: sperm & egg • Stage 3:Sperm and Egg Cells Join and become a ZYGOTE or fertilized egg. • ZYGOTE develops into a Sporophyte & the process begins all over again.

  15. Non-Vascular Life Cycle ZYGOTE

  16. NON-VASCULAR PLANT LIFE CYCLE

  17. Non-Vascular Plant Life cycle Contains spores sporophyte gametophyte Rhizoids

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