Photosynthesis and plant cells Photosynthesis and plant cells.
Photosynthesis
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Transcript of Photosynthesis
Photosynthesis
Wednesday, October 26, 11
Introduction
• Where do we get our food?
• Plant
• How do plants make food?
• Photosynthesis
Wednesday, October 26, 11
Time to fill in your notes
• Plants make their own food. This process is called photosynthesis.
• Glucose is the product.
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What is photosynthesis?
• A process where plants make their own food by absorbing carbon dioxide, water and light energy.
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What are the products?
• They produce glucose and oxygen.
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What do you give plants so that they don’t die?
Carbon Dioxide Water
Light Energy
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What are the products?
Glucose Oxygen
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Equation for Photosynthesis
Chlorophyll
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Effect of Light Intensity on the Rate of Photosynthesis
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Effect of temperature on the Rate of Photosynthesis
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Do you think it is good to supply light to plants for 24 hours? Why?
• No
• It is because the plant will keep on growing and run out of starch. Hence, it will die from starvation.
• The rate of transpiration will also be high.
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Why are there more plants in the equatorial region than the tundra region?
• It is because, the optimum conditions are achieved.
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Work on these questions with your friend. (Don’t use your notes)
• What are the ingredients for photosynthesis?
• What are the products for photosynthesis?
• What is the main purpose of photosynthesis?
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Answers
• Carbon dioxide and water.
• Glucose and Oxygen.
• Plants have to photosynthesize so that they can get glucose for growing.
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Summary
New materials
Lipids, Proteins & Sugar
StarchCaptured by
Contained in
Takes in
Gives out
Needed by
Transformed & stored as
Absorbed by
Used to produce
Such as
Inside
Produces
Needed for
Needed for
Wednesday, October 26, 11
Summary
New materials
Lipids, Proteins & Sugar
StarchCaptured by
Contained in
Takes in
Gives out
Needed by
Transformed & stored as
Absorbed by
Used to produce
Such as
Inside
Produces
Needed for
Needed for
Green plant
Wednesday, October 26, 11
Summary
New materials
Lipids, Proteins & Sugar
StarchCaptured by
Contained in
Takes in
Gives out
Needed by
Transformed & stored as
Absorbed by
Used to produce
Such as
Inside
Produces
Needed for
Needed for
Chlorophyll
Green plant
Wednesday, October 26, 11
Summary
New materials
Lipids, Proteins & Sugar
StarchCaptured by
Contained in
Takes in
Gives out
Needed by
Transformed & stored as
Absorbed by
Used to produce
Such as
Inside
Produces
Needed for
Needed for
ChlorophyllLight
energy
Green plant
Wednesday, October 26, 11
Summary
New materials
Lipids, Proteins & Sugar
StarchCaptured by
Contained in
Takes in
Gives out
Needed by
Transformed & stored as
Absorbed by
Used to produce
Such as
Inside
Produces
Needed for
Needed for
ChlorophyllLight
energy
Carbon dioxide Green
plant
Wednesday, October 26, 11
Summary
New materials
Lipids, Proteins & Sugar
StarchCaptured by
Contained in
Takes in
Gives out
Needed by
Transformed & stored as
Absorbed by
Used to produce
Such as
Inside
Produces
Needed for
Needed for
ChlorophyllLight
energy
Carbon dioxide Green
plant
Oxygen
Wednesday, October 26, 11
Summary
New materials
Lipids, Proteins & Sugar
StarchCaptured by
Contained in
Takes in
Gives out
Needed by
Transformed & stored as
Absorbed by
Used to produce
Such as
Inside
Produces
Needed for
Needed for
ChlorophyllLight
energy
Carbon dioxide Green
plant
Oxygen
Water
Wednesday, October 26, 11
Summary
New materials
Lipids, Proteins & Sugar
StarchCaptured by
Contained in
Takes in
Gives out
Needed by
Transformed & stored as
Absorbed by
Used to produce
Such as
Inside
Produces
Needed for
Needed for
ChlorophyllLight
energy
Carbon dioxide Green
plant
Oxygen
Water Plant growth
Wednesday, October 26, 11
Summary
New materials
Lipids, Proteins & Sugar
StarchCaptured by
Contained in
Takes in
Gives out
Needed by
Transformed & stored as
Absorbed by
Used to produce
Such as
Inside
Produces
Needed for
Needed for
Chlorophyll
Carbon dioxide
Oxygen
Water
Light energy
Green plant
Plant growth
Wednesday, October 26, 11
Games and Animation
• Photosynthesis Animation
• Water for plants (Game)
• Plants need minerals. (Game)
Wednesday, October 26, 11