BIO 172 EXAM 2 WITH 100%
CORRECT ANSWERS 2026
What are three ways energy is extracted from glucose? correct
answer Glycolysis, Citric Acid Cylce, Oxidative Phosphorylation
What enzyme in the investment phase of glycolysis is responsible
for cosumeing ATP to break down carbohydrates? correct answer
Phosphofruktokinase
How many binding sites does phosphfruktokinase have? What
binds there? correct answer It has a regulatory and active site.
Both bind to ATP.
When ATP binds at phosphfruktokinase's regulatory site, what
happens to the reaction rate? correct answer It decreases, ATP
inhibits phosphfruktokinase
Feedback inhibition correct answer When the product of a
sequence of reactions can be used to allosterically inhibit on of
the enzymes catalyzing the reaction.
Phase 1 Glycolysis correct answer The energy investment
phase. Two ATP are consumed. Fructose-1,6-Biphosphate is the
product.
, Phase 2 glycolysis correct answer The Cleavage phase.
Fructose-1,6-Biphosphate is cleaved into two glyceraldehyde-3-
phosphates. No ATP consumption.
Phase 3 Glycolysis correct answer The Payoff phase. 2 NADH
and 4 ATP produced. Pyruvate formed.
Net Products of Glycolysis correct answer 2 Pyruvate
2 NADH
2 ATP
How is ATP created in Glycolysis? correct answer Substrate
Level Phosphorylation
Substrate Level Phosphorylation correct answer The use of a
chemical substrate to transfer a phosphate directly to an ADP
molecule and form ATP.
Net Equation for Glycolysis correct answer C₆H₁₂0₆ + 2 NAD⁺ +
2 ADP + P → 2 Pyruvate + 2 NADH + 2 H⁺ + 2 ATP
Where does Glycolysis Occur? correct answer The Cytosol
Where does pyruvate go what oxygen is present? correct answer
To Acetyl-CoA synthesis and then to the Citric Acid Cycle
Where does pyruvate go when oxygen isn't present? correct
answer To fermentation
CORRECT ANSWERS 2026
What are three ways energy is extracted from glucose? correct
answer Glycolysis, Citric Acid Cylce, Oxidative Phosphorylation
What enzyme in the investment phase of glycolysis is responsible
for cosumeing ATP to break down carbohydrates? correct answer
Phosphofruktokinase
How many binding sites does phosphfruktokinase have? What
binds there? correct answer It has a regulatory and active site.
Both bind to ATP.
When ATP binds at phosphfruktokinase's regulatory site, what
happens to the reaction rate? correct answer It decreases, ATP
inhibits phosphfruktokinase
Feedback inhibition correct answer When the product of a
sequence of reactions can be used to allosterically inhibit on of
the enzymes catalyzing the reaction.
Phase 1 Glycolysis correct answer The energy investment
phase. Two ATP are consumed. Fructose-1,6-Biphosphate is the
product.
, Phase 2 glycolysis correct answer The Cleavage phase.
Fructose-1,6-Biphosphate is cleaved into two glyceraldehyde-3-
phosphates. No ATP consumption.
Phase 3 Glycolysis correct answer The Payoff phase. 2 NADH
and 4 ATP produced. Pyruvate formed.
Net Products of Glycolysis correct answer 2 Pyruvate
2 NADH
2 ATP
How is ATP created in Glycolysis? correct answer Substrate
Level Phosphorylation
Substrate Level Phosphorylation correct answer The use of a
chemical substrate to transfer a phosphate directly to an ADP
molecule and form ATP.
Net Equation for Glycolysis correct answer C₆H₁₂0₆ + 2 NAD⁺ +
2 ADP + P → 2 Pyruvate + 2 NADH + 2 H⁺ + 2 ATP
Where does Glycolysis Occur? correct answer The Cytosol
Where does pyruvate go what oxygen is present? correct answer
To Acetyl-CoA synthesis and then to the Citric Acid Cycle
Where does pyruvate go when oxygen isn't present? correct
answer To fermentation
