Upload
katen
View
24
Download
1
Tags:
Embed Size (px)
DESCRIPTION
Page 156 March 4, 2013 Focus : Abiotic and Biotic Factors, Photosynthesis Objective : 6.L.1.2 IWBAT to explain the significance of the processes of photosynthesis, evaluate the importance of abiotic and biotic factors in an ecosystem HW: ecosystems reading sheet - PowerPoint PPT Presentation
Citation preview
11
Page 156 March 4, 2013
Focus: Abiotic and Biotic Factors, Photosynthesis Objective: 6.L.1.2 IWBAT to explain the significance of the processes of photosynthesis, evaluate the importance of abiotic and biotic factors in an ecosystemHW: ecosystems reading sheetWarm Up: Glossary Update (see master on your desk)
http://www.youtube.com/watch?v=lDwUVpOEoE4
http://www.youtube.com/watch?v=C1_uez5WX1o
22
33
PRE-VIEWPRE-VIEWLook at the two pictures and choose:Look at the two pictures and choose:
a.a. Neither of them is livingNeither of them is living
b.b. 1 is living, 2 is non-living1 is living, 2 is non-living
c.c. 2 is living, 1 is non-living2 is living, 1 is non-living
d.d. Both 1 and 2 are livingBoth 1 and 2 are living
***How did you choose your answer?***How did you choose your answer?
1 2
Introduction to
Ecology
Introduction to
Ecology
What is Ecology?What is
Ecology?
What is Ecology??What is Ecology??What is Ecology??What is Ecology??
•The The study of interactionsstudy of interactions betweenbetween organisms organisms and and their their environmentenvironment..
• It It explainsexplains how living how living organisms organisms affectaffect each each other and the world they other and the world they live in.live in.
•The The study of interactionsstudy of interactions betweenbetween organisms organisms and and their their environmentenvironment..
• It It explainsexplains how living how living organisms organisms affectaffect each each other and the world they other and the world they live in.live in.
An OrganismAn OrganismAn OrganismAn Organism•Organism:Organism:
An individual An individual living thing that living thing that is made of is made of cells, cells, uses energy, uses energy, reproduces, reproduces, responds, responds, grows, and grows, and developsdevelops
•Organism:Organism:An individual An individual living thing that living thing that is made of is made of cells, cells, uses energy, uses energy, reproduces, reproduces, responds, responds, grows, and grows, and developsdevelops
An Ecosystem may be very small such as:
An Ecosystem may be very small such as:
• A backyard
• A pond
• A playground
• A backyard
• A pond
• A playground
Some may be very large like:Some may be very large like:
• The deserts of Africa
• The rain forest of Brazil
• The saltwater oceans
• The deserts of Africa
• The rain forest of Brazil
• The saltwater oceans
All Ecosystems Have…All Ecosystems Have…• Example: Think about a pond…• Example: Think about a pond…
A Pond EcosystemA Pond Ecosystem• What are some things found in ponds?• What are some things found in ponds?
A Pond EcosystemA Pond Ecosystem• What are some things found in ponds?
• Water, fish, plants, birds, bugs, soil sunlight, air,
bacteria,
animals
• What are some things found in ponds?
• Water, fish, plants, birds, bugs, soil sunlight, air,
bacteria,
animals
A Pond EcosystemA Pond EcosystemAre all of these things living?
• Water, fish, plants, birds, bugs, soil sunlight, air,
bacteria,
animals
Are all of these things living?
• Water, fish, plants, birds, bugs, soil sunlight, air,
bacteria,
animals
A Pond EcosystemA Pond EcosystemAre all of these things living?
Are all of these things living?
A Pond EcosystemA Pond EcosystemAre all of these things living?
NO!! An ecosystem has many important parts that are living and non-living.
Are all of these things living?
NO!! An ecosystem has many important parts that are living and non-living.
A Pond EcosystemA Pond EcosystemAre all of these things living?
Living Non-Living Fish Water
Plants Soil Birds Sunlight Bugs Air Bacteria
Are all of these things living?
Living Non-Living Fish Water
Plants Soil Birds Sunlight Bugs Air Bacteria
The Nonliving The Nonliving EnvironmentEnvironmentThe Nonliving The Nonliving EnvironmentEnvironment
• Abiotic factorsAbiotic factors- the - the nonliving parts of an nonliving parts of an organism’s organism’s environment.environment.
• Examples Examples include air, include air, water, temperature, water, temperature, rocks and minerals, rocks and minerals, light, and soil.light, and soil.
• Abiotic factors Abiotic factors affect affect an organism’s life.an organism’s life.
• Abiotic factorsAbiotic factors- the - the nonliving parts of an nonliving parts of an organism’s organism’s environment.environment.
• Examples Examples include air, include air, water, temperature, water, temperature, rocks and minerals, rocks and minerals, light, and soil.light, and soil.
• Abiotic factors Abiotic factors affect affect an organism’s life.an organism’s life.
The Living EnvironmentThe Living EnvironmentThe Living EnvironmentThe Living Environment
•Biotic factorsBiotic factors- all the - all the living (or once-living) living (or once-living) organisms that inhabit organisms that inhabit an environment.an environment.
•All All organisms depend organisms depend on others directly or on others directly or indirectlyindirectly for food, for food, shelter, reproduction, or shelter, reproduction, or protection.protection.
•Biotic factorsBiotic factors- all the - all the living (or once-living) living (or once-living) organisms that inhabit organisms that inhabit an environment.an environment.
•All All organisms depend organisms depend on others directly or on others directly or indirectlyindirectly for food, for food, shelter, reproduction, or shelter, reproduction, or protection.protection.
Biotic FactorsBiotic Factors
The living parts of an ecosystem.
They include animals, plants, fungi, protists, and bacteria.
The living parts of an ecosystem.
They include animals, plants, fungi, protists, and bacteria.
What are the LIVING parts of an ecosystem called?
What are the LIVING parts of an ecosystem called?
What are the LIVING parts of an ecosystem called?
Biotic Factors
What are the LIVING parts of an ecosystem called?
Biotic Factors
What are the NON-LIVING parts of an ecosystem called?
What are the NON-LIVING parts of an ecosystem called?
What are the NON-LIVING parts of an ecosystem called?
Abiotic Factors
What are the NON-LIVING parts of an ecosystem called?
Abiotic Factors
Abiotic or Biotic?Abiotic or Biotic?How do you know?How do you know?Abiotic or Biotic?Abiotic or Biotic?
How do you know?How do you know?
Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?
BioticBiotic
Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?
Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?
AbioticAbiotic
Abiotic or Biotic?Abiotic or Biotic?How do you know?How do you know?Abiotic or Biotic?Abiotic or Biotic?
How do you know?How do you know?
Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?
Abiotic: Water and rocks are non-livingAbiotic: Water and rocks are non-living
Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?
Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?
AbioticAbiotic
Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?
Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?
BioticBiotic
34
Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?
35
Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?
BioticBiotic
Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?
Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?
BioticBiotic
38
Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?
39
Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?Abiotic or Biotic?
BioticBiotic
List the biotic and abiotic factors in this ecosystemList the biotic and abiotic factors in this ecosystem
Biotic and Abiotic Factors in the Ecosystem
Biotic and Abiotic Factors in the Ecosystem
Biotic Abiotic (Living) (Non-Living) Flowers Water
Plants Soil Birds Sunlight Bugs Air Bacteria Rocks Animals Rain
Biotic Abiotic (Living) (Non-Living) Flowers Water
Plants Soil Birds Sunlight Bugs Air Bacteria Rocks Animals Rain
\
List the biotic and abiotic factors in this ecosystemList the biotic and abiotic factors in this ecosystem
Biotic and Abiotic Factors in the Ecosystem
Biotic and Abiotic Factors in the Ecosystem
Biotic Abiotic (Living) (Non-Living) Zooplankton Water
Phytoplankton Sea Ice Fish Sunlight Lobster Air Seals Rocks Bears CO2
Biotic Abiotic (Living) (Non-Living) Zooplankton Water
Phytoplankton Sea Ice Fish Sunlight Lobster Air Seals Rocks Bears CO2
What role do abiotic factors play in an ecosystem?
What role do abiotic factors play in an ecosystem?
What role do abiotic factors What role do abiotic factors play in an ecosystem?play in an ecosystem?
SunSun
*Provides *Provides Light, Heat, Light, Heat, and Energyand Energy
*Without the *Without the sun: All biotic sun: All biotic factors (all factors (all living things) living things) would diewould die
4646
What role do abiotic factors What role do abiotic factors play in an ecosystem?play in an ecosystem?
WaterWater
*Provides a *Provides a place to live for place to live for many creatures, many creatures, hydrates all hydrates all biotic factorsbiotic factors
*Without water: *Without water: All biotic factors All biotic factors (all living things) (all living things) would diewould die
4747
What role do abiotic factors What role do abiotic factors play in an ecosystem?play in an ecosystem?
AirAir
*Helps many *Helps many biotic factors biotic factors breathebreathe
*Without air: *Without air: Most biotic Most biotic factors (most factors (most living things) living things) would diewould die
4848
What role do abiotic factors What role do abiotic factors play in an ecosystem?play in an ecosystem?
TemperatureTemperature
*Many *Many creatures can creatures can only survive in only survive in certain certain temperaturestemperatures
*Extreme *Extreme temperature temperature changes: changes: Could kill many Could kill many of the biotic of the biotic factorsfactors
4949
What role do abiotic factors What role do abiotic factors play in an ecosystem?play in an ecosystem?
SoilSoil*Provides a *Provides a home, home, nutrients, nutrients, supportsupport*Without the *Without the soil: Plants soil: Plants would die would die and many and many biotic factors biotic factors would be would be affectedaffected
What would happen to all the biotic factors if there were no
abiotic factors?
What would happen to all the biotic factors if there were no
abiotic factors?
What would happen to all the biotic factors if there were no
abiotic factors?
What would happen to all the biotic factors if there were no
abiotic factors?
All biotic factors would DIE without abiotic factors!!!!!!
All biotic factors would DIE without abiotic factors!!!!!!
What would happen to the biotic factors in this
ecosystem if…
What would happen to the biotic factors in this
ecosystem if…
There was no sun
There was no water
There was no soil
There were no minerals
There was no sun
There was no water
There was no soil
There were no minerals
Plants Make Their Own Food: A Recipe for
Photosynthesis
Plants: One Part of the Carbon Cycle
Plants: One Part of the Carbon Cycle
When carbon dioxide is taken in by plants, what is that called?
When carbon dioxide is taken in by plants, what is that called?
PHOTOSYNTHESIS!
Photosynthesis is How Plants Make Their FoodPhotosynthesis is How Plants Make Their Food
Plants do not need to go to the cafeteria for lunch!
They do need a few special ingredients, though…
Plants do not need to go to the cafeteria for lunch!
They do need a few special ingredients, though…
What is needed for photosynthesis to
occur?
What is needed for photosynthesis to
occur?Carbon Dioxide (CO2)
The plant’s leaves take in CO2
that is breathed out by
animals (and people).
Carbon Dioxide (CO2)The plant’s leaves take in CO2
that is breathed out by
animals (and people).CO2
What is needed for photosynthesis to
occur?
What is needed for photosynthesis to
occur?LightThe plant’s leaves use the light to make a sugar called glucose.
LightThe plant’s leaves use the light to make a sugar called glucose.
What is needed for photosynthesis to
occur?
What is needed for photosynthesis to
occur?Water
The plant’s leaves and roots soak up water to use for photosynthesis.
WaterThe plant’s leaves and roots soak up water to use for photosynthesis.
What is MADE by plants as a result of
photosynthesis?
What is MADE by plants as a result of
photosynthesis?Water
Plants release water through their leaves. This is called transpiration!
WaterPlants release water through their leaves. This is called transpiration!
What is MADE by plants as a result of
photosynthesis?
What is MADE by plants as a result of
photosynthesis?Oxygen
(O2)
Oxygen
(O2)
What is MADE by plants as a result of photosynthesis?What is MADE by plants as a result of photosynthesis?
Sugar (Food)Plants make their own food by performing photosynthesis
Sugar (Food)Plants make their own food by performing photosynthesis
A Formula for PhotosynthesisA Formula for
PhotosynthesisSun + CO2 + Water = Food + O2 +
Water
Sun + CO2 + Water = Food + O2 + Water
+ + =
+ +
CO2
O2
Sun
Water
WaterPlant
Food
It’s question time!What is the process by which plants make food?
* Photosynthesis
Photosynthesis is the process by which plants make food. A green plant makes food using light energy. Green plants get light energy from the sun.
Look at this picture of the desert. It is very dry and does not rain much here.Why do you think there are not many plants in the desert?
Plants need water to do photosynthesis (to make their food).
Now it’s YOUR TURNNow it’s YOUR TURN
Plants Need Plants Make
3 factors 3 factors
plants need plants make
Plants Need Plants Make
3 factors 3 factors
plants need plants make
PHOTOSYNTHESISPHOTOSYNTHESIS
Plants Need Plants Make
Plants Need Plants Make
Sunlight
Carbon Dioxide(CO2)
Water
Sugar (Food)
Oxygen (O2)
Water
Draw…Draw…Draw a Plant. Show the:
3 factors that plants need for photosynthesis
AND
3 factors plants make from photosynthesis
Draw a Plant. Show the:
3 factors that plants need for photosynthesis
AND
3 factors plants make from photosynthesis
WATER
SUGAR
WHY IS PHOTOSYNTHESIS SO IMPORTANT?
WHY IS PHOTOSYNTHESIS SO IMPORTANT?
PHOTOSYNTHESIS is one of the most important biological process on earth!
• Provides the oxygen (O2) we breathe
• Consumes extra Carbon Dioxide CO2
• Makes Plant Food
• Gives US food!
PHOTOSYNTHESIS is one of the most important biological process on earth!
• Provides the oxygen (O2) we breathe
• Consumes extra Carbon Dioxide CO2
• Makes Plant Food
• Gives US food!
What is photosynthesis??What is photosynthesis??• The way plants make their food
(sugar)• The way plants make their food
(sugar)
Why do plants need sugar?Why do plants need sugar?
• Sugar (Glucose) is the food for the plant.
• It gives the plant energy to grow.
• Sugar (Glucose) is the food for the plant.
• It gives the plant energy to grow.
HOW do plants MAKE sugar?
HOW do plants MAKE sugar?
To perform photosynthesis, green plants need...
CHLOROPHYLL!
(Chlorophyll is the green
material in plants that
stores sunlight for plants
to make food)
To perform photosynthesis, green plants need...
CHLOROPHYLL!
(Chlorophyll is the green
material in plants that
stores sunlight for plants
to make food)
What part of the plant produces food?
In most plants the leaves are the special parts where the most food is made.
Leaves contain a chemical called chlorophyll. Chlorophyll is the green matter in plants that traps light energy to produce food.
How Are Plants and Animals Different?
How Are Plants and Animals Different?
• Animals cannot make their own food.
• Animals do NOT have chlorophyll (even green animals don’t have it!)
• Animals cannot make their own food.
• Animals do NOT have chlorophyll (even green animals don’t have it!)
• Plants can make their own food.
• Plants have chlorophyll
Plants use water, sunlight and carbon dioxide to make food.
This is called… photosynthesis
Only organisms with the green material CHLOROPHYLL can perform photosynthesis.
WHY DO LEAVES CHANGE COLOR IN THE FALL?
Plants make their own food. They take water from the ground through their roots. They take a gas called carbon dioxide from the air. They turn water and carbon dioxide into food using sunlight and something called chlorophyll. Chlorophyll is green. It gives leaves their green color. Winter days are short and dry. Many plants stop making food in the fall. The chlorophyll goes away. Then we can see orange and yellow colors. These colors were in the leaves all summer, but the green covered them up. Some leaves turn red. This color is made in the fall, from food trapped in the leaves. Brown colors are also made in the fall. They come from wastes left in the leaves.
Photosynthesis: Plants make their food
Sun + CO2 + Water = Food + O2 + Water
Plants Need-Carbon Dioxide-Water-Sunlight
Sun + CO2 + Water = Food + O2 + Water
Plants Make-Oxygen-Water-Food
Photosynthesis: Plants make their food
Plants have chlorophyll-Green-Stores Sunlight-Only plants have it. This is why plants can use sunlight to make food
Why can plants make their food??
Plants Make Their Food with Chlorophyll
Word to know: Chlorophyll: The green material in plants that stores sunlight for plants to make food (by photosynthesis)
Why are plants green?
Why can plants make their own food?
How do plants use the sun to make food?
Why aren’t people green?
Why can’t people make their own food?
Because plants have chlorophyll
Because plants have chlorophyll
Chlorophyll absorbs sunlight
Because people don’t have chlorophyll
Because people don’t have chlorophyll
Draw A Comic Strip Explaining Photosynthesis
Draw A Comic Strip Explaining Photosynthesis
Be creative! 1. Must have a picture in every square2. Must use all of the following words:•Photosynthesis•Chlorophyll•Carbon Dioxide•Sunlight•Water•Food ***BONUS: If you get done early,-Add color to your drawing-Add another box to your comic for more detail
Be creative! 1. Must have a picture in every square2. Must use all of the following words:•Photosynthesis•Chlorophyll•Carbon Dioxide•Sunlight•Water•Food ***BONUS: If you get done early,-Add color to your drawing-Add another box to your comic for more detail