Photosynthesis uses energy to convert Water and Co2 to Glucose and Oxygen
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What is the equation for Photosynthesis
Carbon Dioxide + Water --> Glucose + Oxygen
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What is the Symbol Equation?
Co2 + h2o --> C6H12O6
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What is Glucose used for?
Respiration, Cellulose, Proteins, Starch, Storage as fats and oils (lipids)
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Why is Glucose stored as Starch?
Starch is insoluble
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How many limiting factors are there?
3
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What are the limiting factors?
Temperature, Light intensity and Carbon Dioxide concentration.
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What happens if the temperature is too high?
The enzymes are denatured at 45'C
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What does control variable mean?
Constant and unchanged throught experiment.
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What does independent variable mean?
One that changes
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What does dependent variable mean?
One that you measure
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What is the Chemical formula for Carbon Dioxide?
Co2
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What is the Chemical formula for Water?
H20
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What is the Chemical formula for Oxygen?
O2
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What is the Chemical formula for Gluocose?
C6H12O6
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What does "Limiting Factor" mean?
Preventing photosynthesis from happening any faster
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What is the limiting factor at night?
Light is the limiting factor
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What is the limiting factor in winter
Temperature is the limiting factor
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What is the limiting factor when its summer? Hint; What doesn't the sun let out?
Carbon Dioxide is the limiting factor
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What other thing not mentioned before can be a limiting factor?
Chlorophyll when there isn't enough of it.
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What does the graph for temperature being a limiting factor look like?
It should resemble a 'n' shape.
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What can a gardener use to make plants photosynthesis more?
They can get artificial lighting to make it happen 24/7
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What can a gardener do in Winter/summer?
Use a heater on his plants/Use vents to prevent it getting to hot.
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Outline the key stages in the test for starch in plants.
1) Place in hot water 2) Place in ethanol 3) Wash with water 4) put on white tile and add iodine.
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Outline the key stages in photosynthesis test.
1) Pond weed in water 2) Put light a set distance away 3) Wait fro plan to adjust 4) count amount of bubble or using a syringe and 'capillary tube' pull the oxygen out and measure.
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In the inverse square law how are light intensity and distance linked?
As the distance increases the light intensity decreases. They are inversely proportional to each other.
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