Plants

What are some of the ways organisms depend on plants?

http://1.bp.blogspot.com/-YgCpd62oNqQ/TZJ_mr56xrI/AAAAAAAADTQ/TtscKdG9Xlg/s1600/healthy+food.jpg

What are some of the ways organisms depend on plants?

• Food

What are some of the ways organisms depend on plants?

• Shelter

• Food

What are some of the ways organisms depend on plants?

• Shelter

• Food

• Protection

What are some of the ways organisms depend on plants?

• Shelter

• Food

• 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

Organelle that converts light energy to chemical energy through a process called photosynthesis

(we’ll talk about that later)

What is a chloroplast?

Lets create a classification map (tree map)

How can plants be classified?

plants

plants

vascular Non-vascular

Contains specialized tubes that transport

water & nutrients

Does not contain vascular tissue

plants

vascular non-vascular

Contains specialized tubes that transport

water & nutrients

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

•Reproduces by spores (needs water)•No flowers•No roots (have rhizoids)•No cuticle•Small in size•Examples: liverworts, mosses, hornworts, bryophytes

Seed Seedless

•Larger than nonvascular seedless plants•Examples include: ferns, clubmoss and horsetails

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.

fernsClub Moss

plants

vascular non-vascular

Contains specialized tubes that transport

water & nutrients

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

Seed Seedless•Larger than nonvascular seedless plants•Examples include: ferns, clubmoss and horsetails

Angiosperms Gymnosperms

•Cone-baring seeds•Example – pine, cedar, spruce

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

vascular non-vascular

Contains specialized tubes that transport

water & nutrients

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

Seed Seedless•Larger than nonvascular seedless plants•Examples include: ferns, club moss and horsetails

Angiosperms Gymnosperms

•Cone-baring seeds•Example – pine, cedar, spruce

•Flowering seeds•260,000 types•Many foods and other items•Seeds as part of a fruit•Fruit grows from flowers

Apple Tree

SunflowerLady 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 AngiospermsMonocots

• Narrow leaves with parallel veins.

Dicots

• Leaves with branched veins

• Flowers with parts in multiples of threes

• Flowers with parts in multiples of four or five

• Stems – vascular tissue in bundles scattered throughout the stem

• Stems – vascular tissue in bundles in rings

• Seeds – one cotyledon • Seeds – two cotyledons

P a r t s of a plant

Pa r t s o f a p l a n t

roots

stem

leaf

flower

Pa r t s o f a p l a n t

roots

stem

Leaf •major site of photosynthesis•Captures light energy and converts to chemical energy to provide food.

flower

Pa r t s o f a p l a n t

roots

Stem•Connects the roots to the leaves•Supports branches and leaves•Transports (moves) water, minerals and food.

leaf

flower

Pa r t s o f a p l a n t

Roots

•Vital•Anchors•Keeps plant upright•Absorbs water•Stores food (sugar) – ex: radishes, carrots, potatoes, etc.•Absorbs minerals from the soil

stem

leaf

flower

Pa r t s o f a p l a n t

roots

stem

leaf

Flower•Attract insects to help the plant reproduce.•Part of the plant that has the reproductive organs

Pa r t s o f a p l a n t

roots

stem

leaf

Cuticle• Waxy protective layer on leaves, stem and flowers• Provides protection from insects• Slows evaporation of water

Parts of a flower

Parts of a Flower

StamenMale part of flower, produces pollen

PetalColorful part that attracts pollinators

SepalProtects the flower before it opens

PistilThe female part of the plant

AntherProduces and carries pollen

FilamentFine hair like stalk the anther sits on

StigmaSticky bulb that receives the pollen grains

StyleLong stalk that the stigma sits on

OvaryHas seeds inside

OvuleThe 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)

• 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

Create a “1 – Pager”

Share….• Take 3 sticky notes and write your name on

them. • Visit 3 other notebooks and look at their 1-

pager• 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

• C=Carbon• O=oxygen• H=hydrogen• CO₂ = carbon dioxide• H₂O = water• CH₂O = sugar/glucose

6CO₂ + 6H₂O

C₆H₁₂O₆ + 6O₂Light energy

Chlorophyll

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.

• 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 6CO₂ + 6H₂O + ATP (glucose)

(energy)

Cellular 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)

Model of Photosynthesis and Respiration