Question 8
A potted plant has one of its leaves half-covered with black paper. The plant was kept in a dark cupboard for 48 hours. The plant was then removed from the cupboard and put in bright sunlight for several hours. The covered leaf was then plucked from the plant to test for starch with iodine solution.
Which part of the leaf would turn blue-black in the starch test?
Which part of the leaf would turn blue-black in the starch test?
