AP Biology (Mader), 11th Edition

Chapter 7: Photosynthesis

Post-Test

1
Photosynthesis utilizes _____.
A)the entire electromagnetic spectrum
B)only visible light
C)radio and microwaves
D)gamma rays
2
Which of the following is only minimally absorbed by chlorophyll a and b?
A)Violet light
B)Green light
C)Blue light
D)Red light
3
The endproducts of photosynthesis are:
A)H2O and CO2.
B)Glucose and O2.
C)ATP and H2O.
D)CO2 andVitamin D.
4
The reactants of photosynthesis include all of the following except _____.
A)solar energy
B)carbohydrates
C)H2O
D)CO2
5
The oxygen given off by photosynthesis comes from ___________.
A)CO2
B)glucose
C)H2O
D)the atmosphere
6
Possible solutions to global warming include all of the following EXCEPT:
A)plant more shrubs and trees.
B)use fewer fossil fuels.
C)protect the tropical rainforests from destruction.
D)increase production of greenhouse gases to diffuse heat.
7
C4 plants fix CO2 to _____.
A)PEP (phosphoenolpyruvate)
B)RuBP (ribulose-1,5 biphosphate)
C)3PG (phosphoglycerate)
D)chlorophyll
8
The six-carbon molecule resulting from carbon-dioxide fixation immediately breaks down to form __________.
A)2, three-carbon 3PG molecules
B)3, two-carbon 3PG molecules
C)glucose
D)RuBP
9
Which correctly describes the light-independent reactions?
A)ATP is produced.
B)CO2 is reduced.
C)Solar energy is required.
D)O2 is produced.
10
CO2 fixation occurs when CO2 combines with _____.
A)ribulose bisphosphate
B)3-phosphoglycerate
C)NADP
D)glucose
11
A plant can use G3P (glyceraldehydes-3-phosphate) to make all of the following compounds EXCEPT:
A)sucrose.
B)oils.
C)cellulose.
D)oxaloacetate.
12
The energy and electrons needed for carbohydrate synthesis during the Calvin Benson Cycle are supplied by:
A)NADPH and ATP
B)ATP only
C)CO2
D)NADH and FADH
13
The light-dependent reactions take place in the _____.
A)stroma
B)thylakoids
C)cytosol
D)cristae
14
_______ plant pigments absorb light in the violet-blue-green range and therefore appear as shades of yellow and orange.
A)Chlorophyll-a
B)Carotenoid
C)Chlorophyll-b
15
Photosynthetic pigments capture _____ of the solar energy that reaches the earth.
A)less than 2%
B)20%
C)50%
D)100%
16
About 20-50% of the protein content in chloroplasts is _____, which speeds up CO2 fixation.
A)glyceraldehyde-3-phosphate
B)NADPH
C)ATP
D)RuBP carboxylase
17
Five molecules of PGAL are used to produce _____ so that the Calvin cycle can continue.
A)NADPH
B)RuBP
C)glucose
D)oxaloacetate
18
In photosynthesis:
A)carbon dioxide is oxidized to oxygen molecules.
B)carbon dioxide is reduced to sugar.
C)sugar is oxidized and ATP is produced.
D)water furnishes carbon dioxide to the Calvin Cycle.
19
C4 plants like corn and crabgrass grow better when conditions are _________.
A)cool
B)hot and dry
C)very humid
20
Which of the following is NOT a product of the light-dependent reactions?
A)ATP
B)O2
C)Glucose
D)NADPH
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