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What solution is used to test for starch?
Iodine
What colour does iodine solution go when starch is present?
Black
What colour does iodine solution stay if there is no starch present?
Yellow/Brown
Why shouldn't alcohol be used when there are naked flames present?
Alcohol is flammable/Catches fire easily
Why is a leaf boiled in water when testing for starch?
Soften it/Break down the cell walls
Why is the leaf placed in alcohol?
Remove the green colour/chlorophyll
What is the leaf washed in before testing with iodine solution?
Water
Why is a leaf washed before testing?
Remove alcohol
In what part of plant does photosynthesis mainly take place? (Root, stem or Leaf)
Leaf
What gas is needed for photosynthesis? (Hydrogen, oxygen, carbon dioxide)
Carbon dioxide
What liquid is needed for photosynthesis?
Water
What is the name of the food produced in the photosynthesis reaction beginning with the letter G?
Glucose
What is glucose stored as in photosynthesis?
Starch
Where does the light energy come from for photosynthesis to take place?
The Sun
What is the name of the green chemical that traps/absorbs light energy?
Chlorophyll
What important gas is produced in photosynthesis?
Oxygen
