BIO 181 Exam 2 QUESTIONS AND
CORRECT DETAILED ANSWERS WITH
RATIONALES|AGRADE
What are the 3 phases of the cellular respiration process? - CORRECT ANSWERS glycolysis, the
citric acid cycle, and the electron transport chain
Where in the cell does the glycolysis part of cellular respiration occur? - CORRECT ANSWERS the
cytosol
What is the glycolysis part of cellular respiration's purpose? - CORRECT ANSWERS A molecule of
glucose is split to release energy
Where in the cell does the Krebs (Citric Acid) cycle part of cellular respiration occur? - CORRECT
ANSWERS the mitochondrial matrix
What is the Krebs' cycle purpose? - CORRECT ANSWERS generates a pool of chemical energy,
generating 1 ATP, 3 NADH and 1 FADH2
Where in the cell does the electron transport part of cellular respiration occur? - CORRECT ANSWERS
across the inner membrane of the mitochondria
What is the electron transport's purpose in the cellular respiration? - CORRECT ANSWERS
produces 32 ATP
How many ATP are made in the glycolysis part of cellular respiration? - CORRECT ANSWERS 4
How many ATP are made in the Kreb's cycle part of cellular respiration? - CORRECT ANSWERS 1
, How many ATP are made in the electron transport part of cellular respiration? - CORRECT ANSWERS
none
In which phase of cellular respiration is carbon dioxide made? - CORRECT ANSWERS Kreb's cycle
(citric acid cycle)
What are NAD+ and FAD? - CORRECT ANSWERS function as electron carriers
What do NAD+ and FAD do and what do they become? - CORRECT ANSWERS Carry and donate
the electrons to the Electron Transport chain, they become NAD+ and FAD again and return to the
Kreb's cycle.
In which phase of cellular respiration is water made? - CORRECT ANSWERS Electron Transport
Chain
What would happen to the cellular respiration process if the enzyme (aka catalyst) for one step of the
process was missing or defective? - CORRECT ANSWERS The process would stop and no more
products would be made
During cellular respiration, which stage does not produce ATP via substrate-level phosphorylation? -
CORRECT ANSWERS chemiosmosis
With regards to glycolysis, what is the most important molecule that is generated? - CORRECT ANSWERS
pyruvate
Briefly describe how ATP synthase generates ATP. - CORRECT ANSWERS ATP synthesis is a
protein complex that is essentially a proton-driven rotary motor that produces ATP from ADP and Pi.
ATP serves energy currency of the cell and can be though of as an available source of chemical energy.
CORRECT DETAILED ANSWERS WITH
RATIONALES|AGRADE
What are the 3 phases of the cellular respiration process? - CORRECT ANSWERS glycolysis, the
citric acid cycle, and the electron transport chain
Where in the cell does the glycolysis part of cellular respiration occur? - CORRECT ANSWERS the
cytosol
What is the glycolysis part of cellular respiration's purpose? - CORRECT ANSWERS A molecule of
glucose is split to release energy
Where in the cell does the Krebs (Citric Acid) cycle part of cellular respiration occur? - CORRECT
ANSWERS the mitochondrial matrix
What is the Krebs' cycle purpose? - CORRECT ANSWERS generates a pool of chemical energy,
generating 1 ATP, 3 NADH and 1 FADH2
Where in the cell does the electron transport part of cellular respiration occur? - CORRECT ANSWERS
across the inner membrane of the mitochondria
What is the electron transport's purpose in the cellular respiration? - CORRECT ANSWERS
produces 32 ATP
How many ATP are made in the glycolysis part of cellular respiration? - CORRECT ANSWERS 4
How many ATP are made in the Kreb's cycle part of cellular respiration? - CORRECT ANSWERS 1
, How many ATP are made in the electron transport part of cellular respiration? - CORRECT ANSWERS
none
In which phase of cellular respiration is carbon dioxide made? - CORRECT ANSWERS Kreb's cycle
(citric acid cycle)
What are NAD+ and FAD? - CORRECT ANSWERS function as electron carriers
What do NAD+ and FAD do and what do they become? - CORRECT ANSWERS Carry and donate
the electrons to the Electron Transport chain, they become NAD+ and FAD again and return to the
Kreb's cycle.
In which phase of cellular respiration is water made? - CORRECT ANSWERS Electron Transport
Chain
What would happen to the cellular respiration process if the enzyme (aka catalyst) for one step of the
process was missing or defective? - CORRECT ANSWERS The process would stop and no more
products would be made
During cellular respiration, which stage does not produce ATP via substrate-level phosphorylation? -
CORRECT ANSWERS chemiosmosis
With regards to glycolysis, what is the most important molecule that is generated? - CORRECT ANSWERS
pyruvate
Briefly describe how ATP synthase generates ATP. - CORRECT ANSWERS ATP synthesis is a
protein complex that is essentially a proton-driven rotary motor that produces ATP from ADP and Pi.
ATP serves energy currency of the cell and can be though of as an available source of chemical energy.
