BSC 108 EXAM 2 2026 FINAL PAPER
COMPLETE QUESTIONS AND ANSWERS FULL
SOLUTION
◉ In the Calvin Cycle, ATP is used to?
Answer: provide the energy for sugar synthesis
◉ In the Calvin Cycle, NADPH is used for?
Answer: electrons in the reduction of carbon dioxide into sugar
◉ Where do light independent reactions (Calvin Cycle) occur?
Answer: the area in the chloroplast called the stroma
◉ Leaves are green because?
Answer: chlorophyll molecules absorb violet-blue and red light, but
reflect or transmit green-yellow light
◉ Process of light dependent reactions
Answer: chlorophyll absorbs solar energy and ejects an electron,
which is passed down an electron chain, and water is split, releasing
O2
,◉ Requirements for light dependent reactions
Answer: H2O, ADP, and NADP+
◉ Products for light-dependent reactions
Answer: O2 and the energy-storing compounds ATP and NADH
◉ Requirements for light-independent reactions (Calvin Cycle)
Answer: ATP, NADPH, CO2, a five-carbon sugar called RuBP, and the
enzyme rubisco
◉ Products for light-independent reactions (Calvin Cycle)
Answer: Glyceraldehyde-3-phosphate (G3P), which can be used to
make glucose
◉ Carbon dioxide is fixed during?
Answer: The Calvin Cycle
◉ How is C4 photosynthesis different from C3 photosynthesis?
Answer: C3 photosynthesis produces a three-carbon compound via
the Calvin Cycle while C4 photosynthesis makes an intermediate
four-carbon compound that splits into a three-carbon compound for
the Calvin Cycle
, ◉ C3 Photosynthesis
Answer: The most common form of photosynthesis- a one-stage
process in which atmospheric CO2 is used to form 3-
phosphoglycerate, a three-carbon sugar
◉ C4 photosynthesis
Answer: The two-stage photosynthetic pathway in which CO2 is first
fixed in mesophyll cells to form 4-carbon acids, and then the 4-
carbon acids are broken down into 3-carbon acids in the bundle
sheath cells
◉ Examples of C4 plants
Answer: sugarcane and corn
◉ Why do some plants use C4 photosynthesis?
Answer: It is an adaptation for hot and dry weather
◉ Photosynthesis
Answer: the process that stores energy in the form of glucose
◉ Cellular Respiration
Answer: the process that releases energy from glucose
COMPLETE QUESTIONS AND ANSWERS FULL
SOLUTION
◉ In the Calvin Cycle, ATP is used to?
Answer: provide the energy for sugar synthesis
◉ In the Calvin Cycle, NADPH is used for?
Answer: electrons in the reduction of carbon dioxide into sugar
◉ Where do light independent reactions (Calvin Cycle) occur?
Answer: the area in the chloroplast called the stroma
◉ Leaves are green because?
Answer: chlorophyll molecules absorb violet-blue and red light, but
reflect or transmit green-yellow light
◉ Process of light dependent reactions
Answer: chlorophyll absorbs solar energy and ejects an electron,
which is passed down an electron chain, and water is split, releasing
O2
,◉ Requirements for light dependent reactions
Answer: H2O, ADP, and NADP+
◉ Products for light-dependent reactions
Answer: O2 and the energy-storing compounds ATP and NADH
◉ Requirements for light-independent reactions (Calvin Cycle)
Answer: ATP, NADPH, CO2, a five-carbon sugar called RuBP, and the
enzyme rubisco
◉ Products for light-independent reactions (Calvin Cycle)
Answer: Glyceraldehyde-3-phosphate (G3P), which can be used to
make glucose
◉ Carbon dioxide is fixed during?
Answer: The Calvin Cycle
◉ How is C4 photosynthesis different from C3 photosynthesis?
Answer: C3 photosynthesis produces a three-carbon compound via
the Calvin Cycle while C4 photosynthesis makes an intermediate
four-carbon compound that splits into a three-carbon compound for
the Calvin Cycle
, ◉ C3 Photosynthesis
Answer: The most common form of photosynthesis- a one-stage
process in which atmospheric CO2 is used to form 3-
phosphoglycerate, a three-carbon sugar
◉ C4 photosynthesis
Answer: The two-stage photosynthetic pathway in which CO2 is first
fixed in mesophyll cells to form 4-carbon acids, and then the 4-
carbon acids are broken down into 3-carbon acids in the bundle
sheath cells
◉ Examples of C4 plants
Answer: sugarcane and corn
◉ Why do some plants use C4 photosynthesis?
Answer: It is an adaptation for hot and dry weather
◉ Photosynthesis
Answer: the process that stores energy in the form of glucose
◉ Cellular Respiration
Answer: the process that releases energy from glucose
