Some questions must be answered with a cross in a box . If you change your mind about an
answer, put a line through the box and then mark your new answer with a cross .
Photosynthesis involves light-dependent and light-independent reactions.
The diagram below shows some of the stages in the light-dependent reaction of
photosynthesis.
Put a cross () in the box next to the row in the table that correctly identifies the
products P, Q and R made from one molecule of water.