BIO 123 ACTUAL EXAM SCRIPT 2026
QUESTIONS WITH SOLUTIONS GRADED A+
◉ They are likely photoautotrophs and perform photosynthesis .
Answer: A new bacterium is discovered in Lake Superior. Scientists are
able to determine that they produce oxygen. What is most likely true?
◉ Chloroplasts . Answer: A plant's leaves are the primary site of
photosynthesis. They would be expected to have _________________.
◉ Eight layers of phospholipids . Answer: A student has been shrunk to
fit inside a thylakoid granum. How many layers of phospholipids would
he or she need to cross through to get completely out of the mesophyll
cell?
◉ B.) Carbon Dioxide . Answer: Which substance provides the majority
of the atoms that make up the sugar produced by photosynthesis?
A.) water
B.) Carbon Dioxide
C.) Oxygen
D.) Hydrogen
, ◉ F: O2 is created after splitting H2O . Answer: T or F:
During photosynthesis, CO2, is split to release Oxygen gas.
◉ Photosynthesis . Answer: P/R
CO2 is reduced in this Process.
◉ Cellular Respiration . Answer: P/R
C6 H12 O6 becomes oxidized in this process.
◉ Cellular respiration . Answer: P/R
Overall this process is exergonic.
◉ Photosynthesis . Answer: P/R
Overall this process is endergonic
◉ Although the chemical reactions do not solely depend on solar energy,
they do depend on the products produced by light reactions. . Answer:
Why is referring to the Chen. Reactions of the Calvin-Cycle as a light
independent reactions is only partially accurate.
◉ C.) Calvin Cycle . Answer: A toxin is found to inhibit the update of
CO2 in plant leaves. This toxin would most directly affect the ________.
A.) light reactions
QUESTIONS WITH SOLUTIONS GRADED A+
◉ They are likely photoautotrophs and perform photosynthesis .
Answer: A new bacterium is discovered in Lake Superior. Scientists are
able to determine that they produce oxygen. What is most likely true?
◉ Chloroplasts . Answer: A plant's leaves are the primary site of
photosynthesis. They would be expected to have _________________.
◉ Eight layers of phospholipids . Answer: A student has been shrunk to
fit inside a thylakoid granum. How many layers of phospholipids would
he or she need to cross through to get completely out of the mesophyll
cell?
◉ B.) Carbon Dioxide . Answer: Which substance provides the majority
of the atoms that make up the sugar produced by photosynthesis?
A.) water
B.) Carbon Dioxide
C.) Oxygen
D.) Hydrogen
, ◉ F: O2 is created after splitting H2O . Answer: T or F:
During photosynthesis, CO2, is split to release Oxygen gas.
◉ Photosynthesis . Answer: P/R
CO2 is reduced in this Process.
◉ Cellular Respiration . Answer: P/R
C6 H12 O6 becomes oxidized in this process.
◉ Cellular respiration . Answer: P/R
Overall this process is exergonic.
◉ Photosynthesis . Answer: P/R
Overall this process is endergonic
◉ Although the chemical reactions do not solely depend on solar energy,
they do depend on the products produced by light reactions. . Answer:
Why is referring to the Chen. Reactions of the Calvin-Cycle as a light
independent reactions is only partially accurate.
◉ C.) Calvin Cycle . Answer: A toxin is found to inhibit the update of
CO2 in plant leaves. This toxin would most directly affect the ________.
A.) light reactions
