Name __________________________________________
1) In general, describe the structure of a photosystem:
Date ______________________________
Photosynthesis: Light and Dark Reaction
2) Where, within the chloroplast, are the photosystems located?
3) Compare and contrast the two photosystems in photosynthesis:
Photosystem I
Photosystem II
4)
Period ______________
5) a) Label the diagram below to summarize the activities in the light reactions of photosynthesis.
6) What molecule and type of energy is required for the light reaction to occur?
7) In what organelle does photosynthesis take place?
8) Where in the organelle does the light reaction take place?
9) What are the SEVEN steps of the light reaction?
10) Describe a photosystem and what it does.
11) What is “broken down” by Photosystem II and where does each of these go? Hint: there are three things…
12) Where in the chloroplast does the electron transport chain (ETC) take place?
13) The movement of electrons through the ETC generates energy. What is this energy used for in regards to the protons (H+)?
14) What is produced at the end of the Photosystem I?
15) How does NADP+ become NADPH?
16) What is chemiosmosis?
17) What is the difference between ADP and ATP?
18) Why doesn’t chlorophyll run out of electrons? Where do the electrons come from?
19) How many water molecules split at one time?
20) What molecule is released into the air when water is split?
21) What two molecules travel to the Calvin Cycle?
22) What powers the formation of ATP from ADP at the end of the light reaction?
23) What are the reactants and products of the light reactions of photosynthesis?
Reactants
Products
24) What are the reactants and products of the Calvin Cycle of photosynthesis?
Reactants
Products
25)
Label the parts of the Calvin Cycle
26) Why is CO2 called a building block?
27) Where does the Calvin Cycle take place within the chloroplast?
28) In what conditions can the Calvin Cycle take place?
29) What is “carbon fixation”?
30) What is Rubisco? What does it do?
31) Explain, in detail, the steps of the Calvin Cycle.
32) What compounds (other than glucose) are made in the Calvin Cycle?
33) Below, draw the Calvin Cycle in detail!
34) What is the final product of the Calvin Cycle?
35) The production of one molecule of G3P requires how many turns of the Calvin cycle?