Biology (Raven), 10th Edition

Chapter 8: Photosynthesis

Pre-Test

1
The overall reaction 6 CO2 + 18 ATP + 12 NADPH + water → 2 glyceraldehyde 3-phosphate + 16 Pi + 18 ADP + 12 NADP+
A)describes the light dependent reactions of photosynthesis.
B)is highly exergonic.
C)occurs only at night.
D)describes the fixation of carbon.
E)occurs in the thylakoid membranes
2
The light reactions of photosynthesis
A)convert light energy into chemical energy.
B)occur in all plant and animal cells.
C)occur only at night.
D)occur in both chloroplasts and mitochondria.
E)produce ADP from ATP.
3
Which statement about accessory pigments is NOT true?
A)Phycobiloproteins can absorb green light.
B)accessory pigments absorb photons intermediate in energy between the red and blue wavelengths.
C)accessory pigments absorb blue and red wavelengths.
D)carotenoids absorb photons not primarily absorbed by chlorophylls.
E)accessory pigments transfer a portion of energy to chlorophylls.
4
In noncyclic electron flow,
A)light energy is used to reduce water.
B)ATP and NADPH + H+ is formed.
C)only NADPH + H+ is formed.
D)only ATP is formed.
E)two molecules of water, three photons, and one molecule each of NADP+ and ADP, and one Pi are used.
5
The chemical source of molecular oxygen O2 in photosynthesis is
A)CO2
B)C6H12O6
C)H20
D)NADP.
E)chlorophyll.
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