BIOL 112 UPDATED ACTUAL Questions
and CORRECT Answers
What are the 3 phases in glycolysis? - CORRECT ANSWER- ✔✔Energy Investment Phase 1
(prepping the glucose for splitting)
Energy Investment Phase 2 (splitting of the glucose into G3P)
Energy Payoff Phase 3 (Gaining energy from processingG3P --> Pyruvate)
In glycolysis, what is the energy investment phase? - CORRECT ANSWER- ✔✔To split
glucose by adding one phosphate group on each end of the molecule into 2 G3P
In glycolysis, where does ATP investment occur? - CORRECT ANSWER- ✔✔The first ATP
investment occurs in step 1
Glucose + ATP --> Glucose-6-Phosphate + ADP
The second ATP investment occurs in step 3
Fructose 6-Phosphate + ATP --> Fructose diphosphate + ADP
--> G3P
What are the inputs, outputs of glycolysis - CORRECT ANSWER- ✔✔Inputs: Glucose, 2
NAD+, 2ADP
Outputs: Pyruvate, 2 ATPS, 2 NADH
Net ATP: 2 ATPs and 2 NADH
What is Catabolism - CORRECT ANSWER- ✔✔Catabolism is the break down of larger
molecules into subunits (amino acids, sugar, etc) and energy release (ATP)
What is cellular respiration? - CORRECT ANSWER- ✔✔Cellular respiration is the process
in which reduced reduced glucose (lots of energy) are oxidized (lose energy) in multiple
small steps to release small amounts of energy captured in energy intermediates (ADP, ATP,
NAD+, NADH)
, What is a redox reaction? - CORRECT ANSWER- ✔✔a reaction in which there is a transfer
of electrons/energy
What is the difference between reduction and oxidization - CORRECT ANSWER-
✔✔Reduced means that a molecule has high energy (lots of H, electrons and few oxygen)
Oxidized means that molecule has low energy (not a lot of H, electrons and many oxygen)
If a molecule is reduced it means that it gains energy
If a molecule is oxidized it means that it lost energy
What are the 4 stages of Cellular Respiration? - CORRECT ANSWER- ✔✔Glycolysis
Pyruvate Processing
Critic Acid Cycle
Oxidative Phosphorylation
What kind of process is cellular respiration categorized as? - CORRECT ANSWER-
✔✔Cellular Repatriation because you are breaking a molecule down to gain energy
What occurs in the energy payoff phase in glycolysis? - CORRECT ANSWER- ✔✔G3P is
converted into pyruvate
in the process, in one pathway, 1 NADH is made and 2 ATPS are made
In total, in both pathways, 4 ATPS are made and 2 NADHs are made
Explain how, in the glycolysis pay off phase, NADH synthesis occurs - CORRECT
ANSWER- ✔✔Carbon molecule is oxidized by NAD+ so 2 electrons from the carbon
molecule are donated which results in NAD+ + H+ --> NADH.
Where does Cellular Respiration occur in EUK cells? - CORRECT ANSWER-
✔✔Glycolysis in the cytoplasm
Mitochondrial Matrix Pyruvate Processing, Critic Acid cycle,
Ox Phos in the Mitochondria Inner membrane (inter-membrane/mitochondrial matrix)
and CORRECT Answers
What are the 3 phases in glycolysis? - CORRECT ANSWER- ✔✔Energy Investment Phase 1
(prepping the glucose for splitting)
Energy Investment Phase 2 (splitting of the glucose into G3P)
Energy Payoff Phase 3 (Gaining energy from processingG3P --> Pyruvate)
In glycolysis, what is the energy investment phase? - CORRECT ANSWER- ✔✔To split
glucose by adding one phosphate group on each end of the molecule into 2 G3P
In glycolysis, where does ATP investment occur? - CORRECT ANSWER- ✔✔The first ATP
investment occurs in step 1
Glucose + ATP --> Glucose-6-Phosphate + ADP
The second ATP investment occurs in step 3
Fructose 6-Phosphate + ATP --> Fructose diphosphate + ADP
--> G3P
What are the inputs, outputs of glycolysis - CORRECT ANSWER- ✔✔Inputs: Glucose, 2
NAD+, 2ADP
Outputs: Pyruvate, 2 ATPS, 2 NADH
Net ATP: 2 ATPs and 2 NADH
What is Catabolism - CORRECT ANSWER- ✔✔Catabolism is the break down of larger
molecules into subunits (amino acids, sugar, etc) and energy release (ATP)
What is cellular respiration? - CORRECT ANSWER- ✔✔Cellular respiration is the process
in which reduced reduced glucose (lots of energy) are oxidized (lose energy) in multiple
small steps to release small amounts of energy captured in energy intermediates (ADP, ATP,
NAD+, NADH)
, What is a redox reaction? - CORRECT ANSWER- ✔✔a reaction in which there is a transfer
of electrons/energy
What is the difference between reduction and oxidization - CORRECT ANSWER-
✔✔Reduced means that a molecule has high energy (lots of H, electrons and few oxygen)
Oxidized means that molecule has low energy (not a lot of H, electrons and many oxygen)
If a molecule is reduced it means that it gains energy
If a molecule is oxidized it means that it lost energy
What are the 4 stages of Cellular Respiration? - CORRECT ANSWER- ✔✔Glycolysis
Pyruvate Processing
Critic Acid Cycle
Oxidative Phosphorylation
What kind of process is cellular respiration categorized as? - CORRECT ANSWER-
✔✔Cellular Repatriation because you are breaking a molecule down to gain energy
What occurs in the energy payoff phase in glycolysis? - CORRECT ANSWER- ✔✔G3P is
converted into pyruvate
in the process, in one pathway, 1 NADH is made and 2 ATPS are made
In total, in both pathways, 4 ATPS are made and 2 NADHs are made
Explain how, in the glycolysis pay off phase, NADH synthesis occurs - CORRECT
ANSWER- ✔✔Carbon molecule is oxidized by NAD+ so 2 electrons from the carbon
molecule are donated which results in NAD+ + H+ --> NADH.
Where does Cellular Respiration occur in EUK cells? - CORRECT ANSWER-
✔✔Glycolysis in the cytoplasm
Mitochondrial Matrix Pyruvate Processing, Critic Acid cycle,
Ox Phos in the Mitochondria Inner membrane (inter-membrane/mitochondrial matrix)
