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BIOL 1107
Exam 3 - BIOL 1107: Principles of Biology I (Latest 2026/ 2027 Update)
Review| 100% Verified Questions & Answers | Grade A
*The function of cellular respiration is to __________. - ANS extract usable energy from
glucose
*Glucose is the primary fuel for cellular respiration. Which of the following molecules
can also be used by cellular respiration to generate ATP? - ANS fatty acids, amino acids,
glycerol
*Fermentation is essentially glycolysis plus an extra step in which pyruvate is reduced to
form lactate or alcohol and carbon dioxide. This last step __________. - ANS enables the
cell to recycle the reduced NADH to oxidized NAD+
*A small amount of ATP is made in glycolysis by which of the following processes? - ANS
Transfer of a phosphate group from a fragment of glucose to ADP by substrate-level
phosphorylation
*In the overall process of glycolysis and cellular respiration, __________ is oxidized and
__________ is reduced. - ANS glucose; oxygen
BIOL 1107
, 2
BIOL 1107
*In what molecule(s) is the majority of the chemical energy from pyruvate transferred
during the citric acid cycle? - ANS NADH and FADH2
*Which of the following metabolic pathways produce(s) the most ATP, per glucose
molecule metabolized, during cellular respiration? - ANS The electron transport chain
and oxidative phosphorylation
*Most of the ATP in cellular respiration is produced by the process of chemiosmosis.
How does this process produce ATP? - ANS H+ flows across the inner mitochondrial
membrane through the enzyme ATP synthase.
*All of the processes involved in cellular respiration produce ATP. Which of the following
processes produces the most ATP? - ANS Oxidative phosphorylation
*Cells must regulate their metabolic pathways so that they do not waste resources.
What is the most common mechanism that regulates cellular respiration in most cells? -
ANS Feedback inhibition of glycolysis
Most of the NADH that delivers electrons to the electron transport chain comes from
which of the following processes? - ANS The citric acid cycle
Fermentation by itself produces no ATP but keeps glycolysis going, which produces a
small amount of ATP. How does fermentation do this? - ANS Fermentation oxidizes
NADH to NAD+, which facilitates the production of ATP in glycolysis.
BIOL 1107
BIOL 1107
Exam 3 - BIOL 1107: Principles of Biology I (Latest 2026/ 2027 Update)
Review| 100% Verified Questions & Answers | Grade A
*The function of cellular respiration is to __________. - ANS extract usable energy from
glucose
*Glucose is the primary fuel for cellular respiration. Which of the following molecules
can also be used by cellular respiration to generate ATP? - ANS fatty acids, amino acids,
glycerol
*Fermentation is essentially glycolysis plus an extra step in which pyruvate is reduced to
form lactate or alcohol and carbon dioxide. This last step __________. - ANS enables the
cell to recycle the reduced NADH to oxidized NAD+
*A small amount of ATP is made in glycolysis by which of the following processes? - ANS
Transfer of a phosphate group from a fragment of glucose to ADP by substrate-level
phosphorylation
*In the overall process of glycolysis and cellular respiration, __________ is oxidized and
__________ is reduced. - ANS glucose; oxygen
BIOL 1107
, 2
BIOL 1107
*In what molecule(s) is the majority of the chemical energy from pyruvate transferred
during the citric acid cycle? - ANS NADH and FADH2
*Which of the following metabolic pathways produce(s) the most ATP, per glucose
molecule metabolized, during cellular respiration? - ANS The electron transport chain
and oxidative phosphorylation
*Most of the ATP in cellular respiration is produced by the process of chemiosmosis.
How does this process produce ATP? - ANS H+ flows across the inner mitochondrial
membrane through the enzyme ATP synthase.
*All of the processes involved in cellular respiration produce ATP. Which of the following
processes produces the most ATP? - ANS Oxidative phosphorylation
*Cells must regulate their metabolic pathways so that they do not waste resources.
What is the most common mechanism that regulates cellular respiration in most cells? -
ANS Feedback inhibition of glycolysis
Most of the NADH that delivers electrons to the electron transport chain comes from
which of the following processes? - ANS The citric acid cycle
Fermentation by itself produces no ATP but keeps glycolysis going, which produces a
small amount of ATP. How does fermentation do this? - ANS Fermentation oxidizes
NADH to NAD+, which facilitates the production of ATP in glycolysis.
BIOL 1107
