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Ashton's Photosynthesis Mind Map - Coggle Diagram
Ashton's Photosynthesis Mind
Map
Products of photosynthesis
Sugar (Glucose
Food
Animals
Plants
Test for starch
Boil the leaf
Immense the leaf in hot alcohol
To remove green pigment (chlorophyll)
Iodine
If starch is present
Iodine will turn dark blue
If starch is not present
Iodine will remain reddish brown
To break down cell walls
Transported from the leaves to other parts of the plant
Excess
Stored as starch in storage organs
Roots
Stems
Increases when the rate of photosynthesis increases
Oxygen
Test for oxygen
Place a glowing splint at the mouth of the test tube
If it does not relight
Oxygen is not present
If it relights
Oxygen is present
Needed for respiration
Animals
Plants
Materials needed for photosynthesis
Chlorophyll
Test if chlorophyll is needed for photosynthesis
Use a bioloured leaf to test for starch
White part
Green chlorophyll is not present (Will test negative for starch)
Green part
Green chlorophyll is present (Will test positive for starch
Traps light
When light intensity increases, rate of photosynthesis increases
Test if light is needed for photosynthesis
Cover part of the leaf with a black paper
After a few hours
Pluck the leaf and test for starch
Part of the leaf exposed to light
Positive for starch
Part of the leaf under black paper
Negative for starch
Water
Carbon dioxide
Test if carbon dioxide is needed for photosynthesis
Not the same when testing if carbon dioxide is present
Lime water test