Biomanbio Photosynthesis

Name : _________________________________________________________________________ Period: __________
Go to --- Photosynthesis---- Leaf Anatomy
1. The ______________ _________________ cells are most responsible for doing photosynthesis.
2. The organelle responsible for doing photosynthesis is _______________________.
3. Within the Chloroplast the green discs called ______________________are where _____________ dependent
reactions occur.
4. The fluid surrounding a chloroplast called the ____________________ is where the __________ cycle occurs.
Select Light dependent reactions to answer following.
5. Photolysis (Step 1): light strikes _____________ in __________________ II. Causing electrons to become excited
(gain energy)
6. The excited electrons leave Photosystem II and begin travel down _____________ ___________ ___________.
7. Photolysis (step 2): Water is split to replace _______________ lost. Also produces ________________ ions and
8. As electrons travel down the chain. Their energy is used to pump ___________________ ions across membrane
into the ___________________________ space.
9. This results in a ______________ concentration of ____ in thylakoid space versus low in stroma.
10. Hydrogen moves from high to low concentration by ____________________.
11. H+ enters through a protein called ________ ________________.
12. ATP will be used during __________________ _______________ as energy source to produce sugar.
13. Electrons continue down electron transport chain to ______________I. Light strikes causing electrons to get
excited again. Continue further down a second electron transport chain.
14. Electrons are used to reduce ______ to for _______. Which is a _____________ _______________. Then enters
Stroma for Calvin Cycle.
15. Light-dependent reactions of photosynthesis are to produce _____ and _________ used in Calvin Cycle for
organic compound production.
16. Go through steps again to check for understanding.
Now Enter the Calvin Cycle
17. Phase 1: is called _______________ ________________ where three molecules of _____________ and three
molecules of ____________ are used to produce 6 molecules of ______________________ using an enzyme
called RuBisCo.
18. Phase 2: is called _______________________, where 6 molecules of 3-Phosphoglycerate is added with electrons
carried by ________________ and ________ produced from______________ _____________ reactions. This
produces 6 molecules of ______________.
19. G3P is the final product of Calvin Cycle. Only ____ molecule of G3P will leave Calvin Cycle and used to form
organic compounds like _____________________.
20. The other 5 molecules of G3P are used for the _____________________ of RuBP. Which allows cycle to
21. RuBP requires energy for regeneration to occur. Energy comes from _______a product from light reactions.
Repeat steps to check for understanding.
Enter ------Photosynthesis Quiz
22. Which part of the plant cell performs photosynthesis? ___________________________
23. What does light do when it strikes the chlorophyll molecules of photosynthesis 1 and 2?
______________________ _______________________________________________
24. After light excites electrons and they leave Photosystem II to travel down the first electron transport chain. How
are these electrons replaced to Photosystem II?
25. The splitting of water at photosystem II is known as _________________ and results in the production of
26. As electrons travel from photosystem II down the first electron transport chain. Their energy is used to
27. Why do hydrogen ions flow from the thylakoid space to the stroma through ATP synthase?
28. After electrons get excited by light a second time (at photosystem I). Where do they go?
29. Which products of the light-dependent reactions are used in the Calvin cycle to help from reduced organic
compounds? ____________________________________________________________________________.
30. What happens during the carbon fixation stage of the Calvin Cycle (light-independent reactions)?
31. What happens during the reduction stage of the Calvin Cycle (light-independent reactions)?
32. What happens during the regeneration stage of the Calvin Cycle (light-independent reactions)?
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