Reactions Of Photosynthesis Worksheet With Answers Page 2

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Which molecules act as carriers for energy and high energy electrons during photosynthesis?
A. ATP
B. O
2
C. NADPH
D. CO
2
How is the Calvin cycle different from the light-dependent reactions?
A. Calvin cycle takes place in chloroplasts.
B. Calvin cycle takes place in the stroma.
C. Calvin cycle requires light.
D. Calvin cycle molecules are part of the thylakoid membrane.
Oxygen produced during the light-dependent reaction is __________________________.
A. used in the Calvin cycle to make sugar
B. joined with the NADPH to make water
C. is released into the atmosphere
D. None of these, oxygen is NOT produced by the light-dependent reaction
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+
Write the equation that shows how NADP
becomes NADPH.
+
+
2NADP
+
2H
+4e`  2NADPH
___________________________________________________________________________________
Name 3 factors that affect the rate at which photosynthesis occurs.
1.
_____Water/Moisture______________________
2. _____Sunlight/Light intensity_____________________
3. _____Temperature______________________
MODIFIED TRUE or FALSE
Circle T if the statement is TRUE.
use the blank provided to correct the underlined word/phrase
Circle F if the statement is FALSE and
.
T
F
Increasing light intensity decreases the rate of photosynthesis.
Increases up to a certain
point...
T
F
Carbon dioxide molecules enter the light-dependent reactions from the atmosphere.
Light-independent reactions
T
F
Photosynthesis uses energy from ATP and high energy electrons from NADPH produced in
the light-dependent reactions to make glucose in the Calvin cycle. ___________________
T
F
The light-dependent reaction produces ATP, NADPH, and carbon dioxide.
Oxygen
+
T
F
ATP synthase spins like a turbine as H
ions pass through it to generate ATP. __________
T
F
Electrons are energized twice during photosynthesis. __________

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