BIOL 212 EXAM 2 PRACTICE QUESTIONS WITH DETAILED EXPLANATIONS 2026

BIOL 212 EXAM 2 PRACTICE QUESTIONS WITH
DETAILED EXPLANATIONS 2026

◉ what does cellular respiration do?
Answer: uses energy in glucose to make chemical energy


◉ if O2 if present cellular rep or fermentation
Answer: cellular resp


◉ what kinds of molecules do cells use for ATP production
Answer: carbs, fats, proteins


◉ what is broken down to create ATP (not specific)
Answer: sugar


◉ cellular resp formula
Answer: C6H12O6 + 6O2 + 6H2O +29ADP+Pi -> 6CO2 +
12H2O+29ATP


◉ where does glycolysis occur?
Answer: cytoplasm/cytosol

,◉ in glycolysis, glucose gets broken into
Answer: 2 3 carbons (pyruvate)


◉ net yeild of glycolysis
Answer: 2 pyruvate, 2 ATP, 2 NADH


◉ how is glycolysis regulated?
Answer: feedback inhibition
High levels of ATP inhibit phosphofructokinase


◉ pyruvate processing happens where
Answer: in mitocondrial matrix or cytosol (of prokaryotes)


◉ in pyruvate processing, what is the output?
Answer: acetyl CoA and CO2


◉ net yield of pyruvate processing
Answer: 2 AcetylCoA, 2 CO2, 2 NADH


◉ how is pyruvate processing regulated?
Answer: feedback inhibition

, when abundant products of glycolysis/pyruvate processing,
pyruvate dehydrogenase is phosphorylated which inhibits


◉ where does the citric acid cycle occur?
Answer: in mitocondrial matrix orcytosol (of prokaryotes)


◉ what happens in the citric acid cycle
Answer: each acetyl CoA is oxidized to produce CO2


◉ net yeild of citric acid cycle
Answer: 4 CO2, 6 NADH, 2 FADH2, 2 ATP


◉ how is citric acid cycle regulated?
Answer: several methods of feedback inhibition


◉ are the reaction rates in citric acid cycle the same/opposite as the
amount of ATP/NADH?
Answer: opposite
low atp, nadh = high rxn rates


◉ what act as election shuttles in citric acid cycle?