Photosynthesis Review
General Information:
1. What is the difference between autotrophs and heterotrophs?
2. Explain the purpose of photosynthesis:
3. What is the balanced chemical reaction (formula) for photosynthesis?
Light + _____________ + _______________
_____________ + _____________
4. What is the word equation for photosynthesis?
___________ + _____________ + _______________
_____________ + _____________
5. In the reaction above, circle the waste product.
6. In the reaction above, place a square around the desired product.
7. List the two reactions of photosynthesis in order.
1)
2)
Anatomy of a Chloroplast
8. What are the individual saclike membranes called in a chloroplast?
9. What is a stack of thylakoids called?
10. What is like the “cytoplasm” of the chloroplast?
11. Draw a chloroplast and label the following structures: Stroma, Thylakoid, and Granum
Light and Pigments
12. What is the principle (major) pigment in a plant?
13. What colors are absorbed by Chlorophyll A and B?
14. What colors are reflected by Chlorophyll A and B?
15. What do accessory pigments do in plant cells? Name an example of an accessory pigment.
16. Why do leaves change color in the Fall?
Light Dependent Reaction
17. Where in the chloroplast does the light-dependent reaction take place?
18. Energy from _______________ is used to split 6 water molecules.
19. NADP+ converts into _____________________ by picking up 1 _________________ and 2 electrons.
20. ADP (partially charged battery) converts into ________ (fully charged battery) by adding a ______________________.
21. What is the waste product that is released in the light-dependent reaction?
Light Independent Reaction
22. The________________________ and_________________________ are two other names for the Light Independent
Reaction.
23. Where in the chloroplast does the Calvin Cycle take place?
24. The NADPH is like a “taxi cab” that carries ____________________and _____________ to the dark reaction.
25. _______________ and ___________________ are combined to form a single ______________________.
Practice Drawing the steps of photosynthesis from memory below:
Word Bank
ADP + P
ATP
Calvin cycle
CO (carbon dioxide)
2
Glucose (sugar)
Granum
H O (water)
Light reaction
2
NADP
NADPH
O (oxygen)
Stroma
+
2
Sunlight
Thylakoid