Name ______________________________________________ Date ______________ Period _________
QUIZ: PHOTOSYNTHESIS
Directions: This is a group quiz that you will take using your QuizKit. The purpose of this quiz is to
give you a whole bunch of fun visuals to better understand the elegant process of photosynthesis, and to help
you review what you’ve already learned. Make your responses directly on this quiz, and leave no questions
blank. Make sure that your answer addresses what the question is asking. For a question that needs teacher
initials, you must obtain them to get credit for the question. You may use your notes to help you! Every
person in the group gets the same grade, so work together! Good luck, have fun, now go forth and do
science!
0. What is the worst present to get for your birthday?
1. What is the overall purpose of photosynthesis?
2. What is the name of one of the pigments that collects light energy in the chloroplast of a plant?
3. Which phase of photosynthesis doesn’t directly require light?
4. Using the materials in your QuizKit, and your brains (which, I’d wager, are just swollen with knowledge
by now), make a model of a cell with a single, large chloroplast. The edge of the lab bench should be the
cell membrane. Make sure you label the cell membrane, outer chloroplast membrane, inner chloroplast
membrane, thylakoid membrane, thylakoid space and stroma.
TEACHER INITIALS _________
5. Put the two main sections of photosynthesis in the cell in their correct positions. That is, I want you to
model where each process occurs.
TEACHER INITIALS _________
6. What is the purpose of the light reactions?
7. What do you call a molecule that has gained an electron? Lost an electron?
8. Using the materials in your QuizKit, show how light energy is collected and used to make a proton
gradient between the stroma and the thylakoid space. Make sure you include the production of ATP!
TEACHER INITIALS _________
9. Use the materials in your quiz kit to show how plants replenish the electron supply of the chlorophyll in
photosystem II.
TEACHER INITIALS _________
10. What is the final electron acceptor of the light reactions?
11. Why do plants release oxygen?
12. Move the products of the light reactions from your QuizKit through the (Melvin) Calvin Cycle. Be sure
to show:
RUBISCO’s fixation of carbon from CO2
Use of ATP
Oxidation of NADPH to NADP+
TEACHER INITIALS _________
Making some G3P
Using some G3P to continue the cycle
Regeneration of RuBP
13. The (Melvin) Calvin cycle makes only one molecule of G3P each time it “spins.” What has to happen
in order for it to make enough G3P so that the plant can produce glucose?
14. Does a plant do cellular respiration? Explain FULLY.
15. RUBISCO is not a very nice enzyme. Indeed, under certain conditions it can incorporate oxygen into
the Calvin cycle and not carbon dioxide. Using the materials in your quiz kit, show why this would not be
so good for the plant, and what some plants might do to avoid this problem.
TEACHER INITIALS _________