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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. - PowerPoint PPT Presentation
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Chapter 8 Plants: Section 1By Mrs. T.
THINK ABOUT IT!• Your feet are permanently
encased in a block of concrete. YOU CAN NOT MOVE AROUND!
• What would you need & do to ensure survival?
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.
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
Where did Plants Come From?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
ALGAE
WHAT IS A PLANT?3 CHARACTERISTICS
________________ = organisms that make
their own food.
Made of many cells =
___________________
___________________ that have nucleus in
cells.
Plant cells are surrounded by a _______ _________. (animal cells do NOT have this)
AUTOTROPHS
MULTICELLULAR
EUKARYOTES
CELL WALL
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 ________.
WATER
NUTRIENTS
FLOAT
WATER
What Adaptations would you need to Move onto the Land?
1. a way to obtain ________ and _____________ from their surroundings 1. Land Plants obtain both of these from the ___________.
2. a way to RETAIN (keep) ____________1. The CUTICLE is a waxy , _____________ ____layer that helps prevent water loss.
3. a way to _____________________ materials through out their bodies3. Vascular tissue is a system of ______________ structures inside a plant that move water, nutrients, minerals
and food through the plant.
4. a way to ______________ or (hold up) their bodies 4. Larger plants have rigid cell ____________ and ____________ tissue to strengthen and support the body of
the plant.
5. A way to ___________________ or create new plants. All plants undergo sexual reproduction. 5. A fertilized egg cell is called a ___________________.
water nutrients
water
transport
soil
waterproof
tubelike
Cell walls vascular
support
reproduce zygote
Two Kinds: NONVASCULAR PLANTS
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
GROWING
ROOTS
SHADY
WALLS
Click meClick me
Click me
next
Mosses
back
Liverwort back
Hornwort back
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
STABILITY
SUPPORT
TALL
Plant Life Cycle Stage 1: Sporophyte (SPOH ruh fyt)
Stage Production of SPORES tiny cells that
grow into new organisms Stage 2: Gametophyte (guh MEE tuh fyt)
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.
Non-Vascular Life Cycle
ZYGOTE
NON-VASCULAR PLANT LIFE CYCLE
Non-Vascular Plant Life cycle
sporophyte
gametophyte
Contains spores
Rhizoids