BIOD 171: EXAM 2 WITH ANSWERS
1. Describe the relationship between chloroplasts and chlorophyll. Both
chloroplasts and chlorophyll are associated with photosynthesis.
Chloroplasts are the double membrane- enclosed organelles that contain the
photosynthetic pigment chlorophyll.
2. True or False: Chloroplasts are specific to algae and plants. True
3. The process of photophosphorylation produces which of the following: select
all that apply.
A. ATP
B. Glyceraldehyde-3-phosphate
C. CO2
D. NADPH
E. H2O
A and D.
1. What is one of the main functions of light reactions? Similar to the
electron transport chain, one of its main functions is to generate a proton
concentration gradient to generate ATP.
2. True or False: Dark reactions can occur in the presence or absence of light.
True. The term ‘dark reactions’ (also known as the Calvin Cycle) simply denotes
the second stage in photosynthesis—dark reactions do not actually require
darkness in order to occur.
, BIOD 171: EXAM 2 WITH ANSWERS
1. How many turns (or repititions) of the Calvin Cycle are required to
generate one molecule of glucose? Six.
2. Complete the following equation by placing the appropriate numbers where
indicated.
CO2 + ATP + NADPH + H20 → C6H12O6 + ADP + NADP+
6 CO2 + 18 ATP + 12 NADPH + 12 H20 → C6H12O6 + 18 ADP + 12 NADP+
1. Match the following reactions to its corresponding enzyme:
1. A + B → A-B
2. A-B → A + B
3. A- + B →A + B-
4. Ab + C → A + Cb
A- Lyases
B- Transferases
C- Oxioreductaces
D- Hydrolases
E- Ligases
F- Isomerases
1. Describe the relationship between chloroplasts and chlorophyll. Both
chloroplasts and chlorophyll are associated with photosynthesis.
Chloroplasts are the double membrane- enclosed organelles that contain the
photosynthetic pigment chlorophyll.
2. True or False: Chloroplasts are specific to algae and plants. True
3. The process of photophosphorylation produces which of the following: select
all that apply.
A. ATP
B. Glyceraldehyde-3-phosphate
C. CO2
D. NADPH
E. H2O
A and D.
1. What is one of the main functions of light reactions? Similar to the
electron transport chain, one of its main functions is to generate a proton
concentration gradient to generate ATP.
2. True or False: Dark reactions can occur in the presence or absence of light.
True. The term ‘dark reactions’ (also known as the Calvin Cycle) simply denotes
the second stage in photosynthesis—dark reactions do not actually require
darkness in order to occur.
, BIOD 171: EXAM 2 WITH ANSWERS
1. How many turns (or repititions) of the Calvin Cycle are required to
generate one molecule of glucose? Six.
2. Complete the following equation by placing the appropriate numbers where
indicated.
CO2 + ATP + NADPH + H20 → C6H12O6 + ADP + NADP+
6 CO2 + 18 ATP + 12 NADPH + 12 H20 → C6H12O6 + 18 ADP + 12 NADP+
1. Match the following reactions to its corresponding enzyme:
1. A + B → A-B
2. A-B → A + B
3. A- + B →A + B-
4. Ab + C → A + Cb
A- Lyases
B- Transferases
C- Oxioreductaces
D- Hydrolases
E- Ligases
F- Isomerases
