Which one of the following is the correct combination of relevant materials required for setting up an experiment to show that light in necessary for photosynthesis?
(1) destarched leaves, strips of black paper, starch solution, and iodine crystals
(2) a potted plant, strips of coloured paper, starch solution, iodine and potassium iodide
(3) destarched leaves, strips of black paper, starch solution, and potassium iodide
(4) destarched leaves, strips of black paper, and iodide solution
Correct answer: (4) destarched leaves, strips of black paper, and iodide solution
Explanation:
The correct combination of materials for the above mentioned experiment are
destarched leaves – to check the synthesis of starch
strips of black paper – to cover the leafs
iodine solution – to check the presence of starch