Photosynthesis Exam-Style Questions
1. Complete the word equation for photosynthesis:
carbon dioxide +
+ oxygen
What type of energy is transferred in photosynthesis? What is the source of this energy? A student places a plant into a dark cupboard and partially covers one leaf (leaf A) with a piece of
card. After two days, she carries out a test for starch on leaf A and on one other leaf (leaf B), as
shown below.
leaf A
leaf B
When iodine is added to leaf B, it turns completely blue/black.
2. Which parts of leaf A would turn blue/black?
Shade these areas on the leaf below and explain your answer.