BIO 181 Exam 2 Latest Study Questions And Answers
Real Updates
What are the 3 phases of the cellular respiration process? ANS glycolysis, the citric acid cycle, and the
electron transport chain
Where in the cell does the glycolysis part of cellular respiration occur? ANS the cytosol
What is the glycolysis part of cellular respiration's purpose? ANS A molecule of glucose is split to release
energy
Where in the cell does the Krebs (Citric Acid) cycle part of cellular respiration occur? ANS the
mitochondrial matrix
What is the Krebs' cycle purpose? ANS 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? ANS across the inner
membrane of the mitochondria
What is the electron transport's purpose in the cellular respiration? ANS produces 32 ATP
How many ATP are made in the glycolysis part of cellular respiration? ANS 4
How many ATP are made in the Kreb's cycle part of cellular respiration? ANS 1
How many ATP are made in the electron transport part of cellular respiration? ANS none
In which phase of cellular respiration is carbon dioxide made? ANS Kreb's cycle (citric acid cycle)
What are NAD+ and FAD? ANS function as electron carriers
, What do NAD+ and FAD do and what do they become? ANS 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? ANS 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? ANS The process would stop and no more products would be made
During cellular respiration, which stage does not produce ATP via substrate-level phosphorylation? ANS
chemiosmosis
With regards to glycolysis, what is the most important molecule that is generated? ANS pyruvate
Briefly describe how ATP synthase generates ATP. ANS 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.
What is the final electron acceptor in cellular respiration? ANS oxygen
Where in the cell does chemiosmosis occur and what is its purpose? ANS mitochondria or chloroplast,
movemnet of ions across a selectively permeable membrane.
Where does oxidative phosphorlation occur in the cell and what is its purpose? ANS Inner membrane.
Create ATP
Aerobic ANS relating to, involving, or requiring free oxygen.
Anaerobic ANS relating to, involving, or requiring an absence of free oxygen.
cellular respiration ANS The series of metabolic processes by which living cells produce energy through
the oxidation of organic substances.
Real Updates
What are the 3 phases of the cellular respiration process? ANS glycolysis, the citric acid cycle, and the
electron transport chain
Where in the cell does the glycolysis part of cellular respiration occur? ANS the cytosol
What is the glycolysis part of cellular respiration's purpose? ANS A molecule of glucose is split to release
energy
Where in the cell does the Krebs (Citric Acid) cycle part of cellular respiration occur? ANS the
mitochondrial matrix
What is the Krebs' cycle purpose? ANS 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? ANS across the inner
membrane of the mitochondria
What is the electron transport's purpose in the cellular respiration? ANS produces 32 ATP
How many ATP are made in the glycolysis part of cellular respiration? ANS 4
How many ATP are made in the Kreb's cycle part of cellular respiration? ANS 1
How many ATP are made in the electron transport part of cellular respiration? ANS none
In which phase of cellular respiration is carbon dioxide made? ANS Kreb's cycle (citric acid cycle)
What are NAD+ and FAD? ANS function as electron carriers
, What do NAD+ and FAD do and what do they become? ANS 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? ANS 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? ANS The process would stop and no more products would be made
During cellular respiration, which stage does not produce ATP via substrate-level phosphorylation? ANS
chemiosmosis
With regards to glycolysis, what is the most important molecule that is generated? ANS pyruvate
Briefly describe how ATP synthase generates ATP. ANS 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.
What is the final electron acceptor in cellular respiration? ANS oxygen
Where in the cell does chemiosmosis occur and what is its purpose? ANS mitochondria or chloroplast,
movemnet of ions across a selectively permeable membrane.
Where does oxidative phosphorlation occur in the cell and what is its purpose? ANS Inner membrane.
Create ATP
Aerobic ANS relating to, involving, or requiring free oxygen.
Anaerobic ANS relating to, involving, or requiring an absence of free oxygen.
cellular respiration ANS The series of metabolic processes by which living cells produce energy through
the oxidation of organic substances.
