The diagram with the cycle of sun -> chloroplast -> mitochondria is a large portion of the test.
Being able to label all the parts of the chloroplast and mitochondria (and what is going in/coming out at each step), then use those to answer questions is also key.
What is the difference between ATP and ADP?
What does oxygen production tell you? What if something is producing carbon dioxide?
Why is the sun so important?
What is fermentation? Why does it occur? When does it occur?
What is glycolysis? Why does it occur? When does it occur?
How much ATP is made in each stage of glycolysis -> cellular respiration?
What is a producer?
If you can answer these questions well, I think you will be very successful tomorrow.