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AP Bio Ch. 10 Study Guide

True/False
Indicate whether the statement is true or false.
 

 1. 
Interactive question 10.9    Do the following statements answer the question?
Photorespiration may be an evolutionary relic from the time when there was little O2 in the atmosphere and the ability of RuBisCO to distinguish between O2 and CO2 was not critical. Photorespiration appears to protect plants from damaging products of the light reactions that build up when the Calvin cycle slows due to a lck of CO2.
 

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 2. 
Interactive question 10.3
Why are the lines different?
a.
due to the fact experiments are not perfect and this is best scenario possible
b.
due to the fact that they are two different processes and should be graphed differently
c.
due to the fact that there are accessory pigments
d.
due to the fact that there is different power of wavelengths in the spectrum
 

 3. 
Interactive question 10.6 A
Which path do electrons from P700 take during cyclic electron flow?
a.
ferredoxin passes the electrons to the cytochrome complex in the electron transport chain, from which they return to P680
b.
ferredoxin passes the electrons to the cytochrome complex in the electron transport chain, from which they return to P700
c.
ferredoxin passes the electrons to NADP+ in the electron transport chain, from which they go to the Calvin cycle
d.
ferredoxin passes the electrons to NADP+ in the electron transport chain, from which they return to P700
 

 4. 
Interactive question 10.6 B
Why is neither O2 nor NADPH generated by cyclic electron flow?
a.
because water is not split and Fd does not pass electrons to NADP+
b.
because the electron transport chain does not work with cyclic flow, only linear flow
c.
because there is no CO2 available and Fd does not pass electrons to NADP+
d.
because electrons from P700 are not passed to Fd  with cyclic flow, so there is no gradient established
 

 5. 
Interactive question 10.6 C
How then, is ATP produced by cyclic electron flow?
a.
it isn’t, ATP is only produced by linear electron flow
b.
by substrate-level phosphorylation
c.
because electrons go through the ATP synthase complex to drive chemiosmosis
d.
electrons pass down the ETC and the energy released drives chemiosmosis
 

 6. 
Interactive question 10.7 A
On which side is the pH lowest?
a.
in the intermembrane space
b.
in the thylakoid space
c.
in the stroma
d.
in the cristae
 

 7. 
Interactive question 10.8
How many ATP and NADPH are needed to sythesize one G3P molecule?
a.
3 ATP and 6 NADPH
d.
6 ATP and 6 NADPH
b.
3 ATP and 9 NADPH
e.
6 ATP and 9 NADPH
c.
9 ATP and 6 NADPH
f.
9 ATP and 3 NADPH
 

 8. 
Interactive question 10.10 A
Where does the Calvin cycle take place in C4 plants?
a.
in the vascular tissue
c.
in the mesophyll cells
b.
in the thylakoid space
d.
in the bundle sheath cells
 

 9. 
Interactive question 10.10 B
How can C4 plants successfully utilize the Calvin cycle in hot, dry conditions when C3 plants would be undergoing photorespiration?
a.
carbon is fixed into a six carbon compound in bundle sheath cells by PEPcarboxylase, when it is broken down inside mesophyll cells, CO2 is maintained at a high enough concentration that RuBisCO does not accept O2 and cause photorespiration
b.
carbon is fixed into a six carbon compound in mesophyll cells by PEPcarboxylase, when it is broken down inside bundle sheath cells, CO2 is maintained at a high enough concentration that RuBisCO does not accept O2 and cause photorespiration
c.
carbon is fixed into a four carbon compound in bundle sheath cells by PEPcarboxylasewhen it is broken down inside mesophyll cells, CO2 is maintained at a high enough concentration that RuBisCO does not accept O2 and cause photorespiration,
d.
carbon is fixed into a four carbon compound in mesophyll cells by PEPcarboxylase, when it is broken down inside bundle sheath cells, CO2 is maintained at a high enough concentration that RuBisCO does not accept O2 and cause photorespiration
 

Multiple Response
Identify one or more choices that best complete the statement or answer the question.
 

 10. 
Interactive question 10.7 B
What three factors contribute to the formation of this large difference in H+ concentration between the thylakoid space and the stroma?
 a.
transport of protons into the thylakoid space as Pq transfers electrons to the cytochrome complex
 b.
the Calvin cycle needs a high concentration of H+ and e- to function in the thylakoid space
 c.
protons from the splitting of water remain in the thylakoid space
 d.
removal of H+ in the stroma during the reduction of NADP+
 

 11. 
Interactive question 10.10 C
Why does C4 photosynthesis require more ATP than does C3 photosynthesis? Check all that are true and apply.
 a.
ATP is used to convert pyruvate to PEP
 b.
bundle-sheath cells make ATP by PS I cyclic electron flow only
 c.
bundle-sheath cells lack PS II photosystems
 d.
ATP is used to pump malate across across the cell membrane
 

Matching
 
 
Interactive question 10.1
a.
outer membrane
d.
granum
b.
thylakoid
e.
inner membrane
c.
thylakoid space
f.
stroma
 

 12. 

 A
 

 13. 

 B
 

 14. 

 C
 

 15. 

 D
 

 16. 

 E
 

 17. 

 F
 
 
Interactive question 10.2
a.
O2
f.
ATP
b.
light
g.
Calvin cycle in stroma
c.
(CH2O) sugar
h.
NADPH
d.
CO2
i.
light reactions in thylakoid membranes
e.
H2O
 

 18. 

 A
 

 19. 

 B
 

 20. 

 C
 

 21. 

 D
 

 22. 

 E
 

 23. 

 F
 

 24. 

 G
 

 25. 

 H
 

 26. 

 I
 
 
Interactive question 10.3
a.
solid line
b.
dotted line
 

 27. 

 absorption spectrum for chlorophyll a
 

 28. 

 action spectrum for photosynthesis
 
 
Interactive question 10.5
a.
ATP
g.
photophosphorylation by chemiosmosis
b.
photosystem I
h.
water (H2O)
c.
primary electron acceptor
i.
electron transport chain
d.
NADPH
j.
NADP+ reductase
e.
oxygen (1/2 O2)
k.
photosystem II
f.
P700, reaction-center chlorophyll a
l.
P680, reaction-center chlorophyll a
 

 29. 

 A
 

 30. 

 B
 

 31. 

 C
 

 32. 

 D
 

 33. 

 E
 

 34. 

 F
 

 35. 

 G
 

 36. 

 H
 

 37. 

 I
 

 38. 

 J
 

 39. 

 K
 

 40. 

 L
 

 41. 

 M
 
 
Interactive question 10.8
a.
reduction
i.
3-phosphoglycerate
b.
ribulose bisphosphate (RuBP)
j.
6 Phosphate
c.
6 NADPH --> 6 NADP+
k.
regeneration of CO2 acceptor (RuBP)
d.
glucose and other organic compounds
l.
1,3-bisphosphoglycerate
e.
carbon fixation
m.
rubisco
f.
3 ATP --> 3 ADP
n.
G3P
g.
glyceraldehyde-3-phosphate (G3P)
o.
3 CO2
h.
6 ATP --> 6 ADP
 

 42. 

 A
 

 43. 

 B
 

 44. 

 C
 

 45. 

 D
 

 46. 

 E
 

 47. 

 F
 

 48. 

 G
 

 49. 

 H
 

 50. 

 I
 

 51. 

 J
 

 52. 

 K
 

 53. 

 L
 

 54. 

 M
 

 55. 

 N
 

 56. 

 O
 



 
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