Transcript Plants

Plants
What are some of the ways
organisms depend on plants?
What are some of the ways
organisms depend on plants?
• Food
What are some of the ways
organisms depend on plants?
• Food
• Shelter
What are some of the ways
organisms depend on plants?
• Food
• Shelter
• Protection
What are some of the ways organisms
depend on plants?
• Food
• Shelter
• Protection
• Oxygen
Think about your day. Turn to a
neighbor and discuss specific
ways you depend on plants.
Is this a plant?
Is this a plant?
Is this a plant?
Is this a plant?
All plants…
• Eukaryotic & multicellular
• Are producers – an organism that makes its
own food by using an outside energy source
(the sun)
• Have cell walls (organelle only in plants)
• Have chloroplasts (organelle only in plants)
What is a cell wall?
• Provides support and protection
• Make of cellulose and lignin
What is a chloroplast?
Organelle that converts light energy to chemical
energy through a process called photosynthesis
(we’ll talk about that later)
How can plants be classified?
Lets create a classification map (tree map)
plants
plants
vascular
Contains specialized
tubes that transport
water & nutrients
Non-vascular
Does not contain
vascular tissue
plants
vascular
Contains specialized
tubes that transport
water & nutrients
non-vascular
Does not contain
vascular tissue
Seedless
•Reproduces by spores
(needs water)
•No flowers
•No roots (have rhizoids)
•No cuticle
•Small in size
•Examples: liverworts,
mosses, hornworts,
bryophytes
Non-vascular Seedless Plants
• Rhizoids helps to anchor
plant
• Gets water and
nutrients by osmosis
and diffusion
Liverworts
Hornworts
Mosses
Bryophytes
plants
vascular
non-vascular
Contains specialized
tubes that transport
water & nutrients
Does not contain
vascular tissue
Seedless
Seed
Seedless
•Larger than nonvascular
seedless plants
•Examples include: ferns,
clubmoss and horsetails
•Reproduces by spores
(needs water)
•No flowers
•No roots (have rhizoids)
•No cuticle
•Small in size
•Examples: liverworts,
mosses, hornworts,
bryophytes
Vascular Seedless Plants
• Contain vascular tissue in root, stem and
leaves.
• Tube structures transport water and nutrients.
• Examples include Tree ferns, club moss and
horsetail.
Club Moss
ferns
plants
non-vascular
vascular
Does not contain
vascular tissue
Contains specialized
tubes that transport
water & nutrients
Seedless
Seed
Angiosperms
Seedless
•Larger than nonvascular
Gymnosperms seedless plants
•Examples include: ferns,
•Cone-baring seeds clubmoss and horsetails
•Example – pine,
cedar, spruce
•Reproduces by spores
(needs water)
•No flowers
•No roots (have rhizoids)
•No cuticle
•Small in size
•Examples: liverworts,
mosses, hornworts,
bryophytes
Gymnosperm Plants
Pine Tree
Cedar Tree
Spruce Tree
Gymnosperms
• Seeds produced in a cone
• Group includes oldest plant and tallest plant.
Bristlecone Pine - Know to live for over 5,000 years.
Coast Redwood - Forest trees grow over 379 feet tall
plants
non-vascular
vascular
Does not contain
vascular tissue
Contains specialized
tubes that transport
water & nutrients
Seedless
Seed
Angiosperms
•Flowering seeds
•260,000 types
•Many foods and
other items
•Seeds as part of a
fruit
•Fruit grows from
flowers
Seedless
•Larger than nonvascular
Gymnosperms seedless plants
•Examples include: ferns,
•Cone-baring seeds club moss and horsetails
•Example – pine,
cedar, spruce
•Reproduces by spores
(needs water)
•No flowers
•No roots (have rhizoids)
•No cuticle
•Small in size
•Examples: liverworts,
mosses, hornworts,
bryophytes
Apple Tree
Sunflower
Lady Slipper Orchid
Pumpkins
Angiosperms
• Grow in a variety of habitats
• Most food eaten by humans comes from
angiosperms or animals that eat angiosperms.
• Other items such as clothing, medicine,
building materials.
• Flowering plants
Types of Angiosperms
Monocots
Dicots
• Narrow leaves with parallel
veins.
• Flowers with parts in
multiples of threes
• Leaves with branched veins
• Stems – vascular tissue in
bundles scattered
throughout the stem
• Stems – vascular tissue
in bundles in rings
• Seeds – one cotyledon
• Seeds – two cotyledons
• Flowers with parts in
multiples of four or five
P a r t s of a plant
Parts of a plant
flower
leaf
stem
roots
Parts of a plant
flower
Leaf
•major site of photosynthesis
•Captures light energy and converts
to chemical energy to provide food.
stem
roots
Parts of a plant
flower
leaf
Stem
•Connects the roots to the leaves
•Supports branches and leaves
•Transports (moves) water,
minerals and food.
roots
Parts of a plant
flower
leaf
stem
Roots
•Vital
•Anchors
•Keeps plant upright
•Absorbs water
•Stores food (sugar) – ex: radishes,
carrots, potatoes, etc.
•Absorbs minerals from the soil
Parts of a plant
Flower
•Attract insects to help the plant
reproduce.
•Part of the plant that has the
reproductive organs
leaf
stem
roots
Parts of a plant
leaf
Cuticle
• Waxy protective layer on leaves,
stem and flowers
• Provides protection from insects
• Slows evaporation of water
stem
roots
Parts of
a flower
Stamen
Male part of flower,
produces pollen
Parts of
a Flower
Petal
Colorful part that
attracts pollinators
Sepal
Protects the
flower before it
opens
Pistil
The female part
of the plant
Anther
Produces and
carries pollen
Filament
Fine hair like
stalk the anther
sits on
Stigma
Sticky bulb that
receives the pollen
grains
Style
Long stalk that
the stigma sits on
Ovary
Has seeds inside
Ovule
The part of the
ovary that
becomes the seed
Video – “Life” by BBC
• Take notes during the video.
• We will be stopping and answering some
questions in your INB
What are mangroves?
Mangroves are various kinds of trees and shrubs
that grow in saltwater habitats in the tropics
and subtropics.
Location of Mangroves around the world
Mangroves
Activity
• Cut out Mangrove article and paste on
right side of notebook
• Number paragraphs
• Circle at least 2 vocabulary words per
paragraph (pick one color)
• Read article, underline any important
information (another color - no more than
5 words per underline)
Create a “1 – Pager”
• On the left side of the INB (use different color for each)
• Make a boarder with all the vocabulary words you circled in the
article
• In the top ¼ of the page - create a title
• Next ¼ draw a picture to represent what you read
• Pick most important vocabulary words and make a mini boarder
around your picture.
• Choose the most important quote from the words that your
underlined and rewrite it in the next ¼
• In the last ¼ of the page, create 1 (or more) higher order
thinking question based on the reading…and….
• Answer the HOT question
Share….
• Take 3 sticky notes and write your name on
them.
• Visit 3 other notebooks and look at their 1pager
• Leave your sticky notes on the pages you view
Photosynthesis
• A series of chemical reactions that convert
light energy, water and carbon dioxide into the
food-energy molecule glucose and give off
oxygen.
• Occurs in the chloroplasts
• Chloroplasts contain the pigment chlorophyll,
a chemical that absorbs and reflects light.
• Leaves appear green because the chlorophyll
reflects green light and absorbs all the other
colors of light.
Photosynthesis
6CO₂ + 6H₂O
Light energy
Chlorophyll
•
•
•
•
•
•
C=Carbon
O=oxygen
H=hydrogen
CO₂ = carbon dioxide
H₂O = water
CH₂O = sugar/glucose
C₆H₁₂O₆ + 6O₂
Cellular Respiration
• All organisms require energy (usable power)
to survive.
• Energy is in the chemical bonds in food
molecules.
• Cellular respiration is a series of chemical
reactions that convert the energy in food
molecules into a useable form of energy called
ATP.
Cellular Respiration
• ATP= (adenosine triphosphate)
• ATP is the energy used for all cellular
processes (everything the every cell does)
• Example: muscle contraction uses 2 million
ATP molecules per second. Without ATP we
would die.
Cellular Respiration
Cellular Respiration takes place in the
mitochondrion of the cells in ALL living things.
C₆H₁₂O₆ + 6O₂
(glucose)
6CO₂ + 6H₂O + ATP
(energy)
Model of Photosynthesis and Respiration
http://www.biology.ualberta.ca/facilities/multimedia/uploads/alberta/Photo.html
• Cut and glue picture on right side under notes.
• Draw arrows on picture to match website
address image for the direction of CO2, H2O
and O2.
• Color carbon dioxide circles orange, oxygen
red circles and water blue circles (on picture
and legend)