BIO 102 Queen's EXAM QUESTIONS AND
ANSWERS WITH COMPLETE SOLUTIONS |
NEW UPDATE 2026
Where does glycolysis occur? - ANSWERS cytoplasm
Where does pyruvate oxidation occur? - ANSWERS mitochondrial matrix
Where does the citric acid cycle occur? - ANSWERS mitochondrial matrix
Where does the electron transport chain occur? - ANSWERS inner membrane
of mitochondria
What goes into glycolysis? - ANSWERS Glucose and 2 ATP
What comes out of glycolysis? - ANSWERS 2 pyruvate, 2 ATP, 2 NADH
How is glycolysis regulated? - ANSWERS feedback inhibition with PFK enzyme
and ATP or citrate
What goes into pyruvate oxidation? - ANSWERS 2 pyruvate
What comes out of pyruvate oxidation? - ANSWERS 2 acetyl-CoA, 2 NADH, 2
CO2
,What goes into the citric acid cycle? - ANSWERS 2 Acetyl CoA
what comes out of the citric acid cycle? - ANSWERS 4 CO2, 6 NADH, 2 FADH2,
2 ATP
what does the acetyl attach to in the citric acid cycle? - ANSWERS oxaloacetate
citrate - ANSWERS forms after acetyl attaches to oxaloacetate
what molecule is regenerated during citric acid cycle? - ANSWERS
oxaloacetate
Regulation of the Citric Acid Cycle - ANSWERS enzyme used in pyruvate
oxidation (PDH) is regulated and the citric acid cycle can only run if it receives
products from the enzymatic reaction
substrate-level phosphorylation - ANSWERS The enzyme-catalyzed formation
of ATP by direct transfer of a phosphate group to ADP from an intermediate
substrate in catabolism.
- used in glycolysis and citric acid cycle
During cellular respiration, H+ are pumped from the _________________ into the
_________________. - ANSWERS mitochondrial matrix, inter membrane
space
, Water is created during cellular respiration when O2 takes receives electrons and
takes H+ from the ________________ - ANSWERS matrix
ATP synthase - ANSWERS -uses the proton gradient to produce ATP through
oxidative phosphorylation
primary metabolism - ANSWERS essential for cell structure and function
secondary metabolism - ANSWERS synthesis of secondary metabolites that
are not necessary for cell structure and growth
lumen - ANSWERS inner space of thylakoid
Stroma - ANSWERS fluid portion of the chloroplast; outside of the thylakoids
what pigment is found in photosystem II? - ANSWERS P680
What reduces photosystem II? - ANSWERS water molecule, water molecule
leaves H+ in the lumen
how is oxygen produced during photosynthesis? - ANSWERS Water molecule
splits and donates electrons to photosystem II, only leaving O2 behind
What pigment is found in photosystem I? - ANSWERS P700
ANSWERS WITH COMPLETE SOLUTIONS |
NEW UPDATE 2026
Where does glycolysis occur? - ANSWERS cytoplasm
Where does pyruvate oxidation occur? - ANSWERS mitochondrial matrix
Where does the citric acid cycle occur? - ANSWERS mitochondrial matrix
Where does the electron transport chain occur? - ANSWERS inner membrane
of mitochondria
What goes into glycolysis? - ANSWERS Glucose and 2 ATP
What comes out of glycolysis? - ANSWERS 2 pyruvate, 2 ATP, 2 NADH
How is glycolysis regulated? - ANSWERS feedback inhibition with PFK enzyme
and ATP or citrate
What goes into pyruvate oxidation? - ANSWERS 2 pyruvate
What comes out of pyruvate oxidation? - ANSWERS 2 acetyl-CoA, 2 NADH, 2
CO2
,What goes into the citric acid cycle? - ANSWERS 2 Acetyl CoA
what comes out of the citric acid cycle? - ANSWERS 4 CO2, 6 NADH, 2 FADH2,
2 ATP
what does the acetyl attach to in the citric acid cycle? - ANSWERS oxaloacetate
citrate - ANSWERS forms after acetyl attaches to oxaloacetate
what molecule is regenerated during citric acid cycle? - ANSWERS
oxaloacetate
Regulation of the Citric Acid Cycle - ANSWERS enzyme used in pyruvate
oxidation (PDH) is regulated and the citric acid cycle can only run if it receives
products from the enzymatic reaction
substrate-level phosphorylation - ANSWERS The enzyme-catalyzed formation
of ATP by direct transfer of a phosphate group to ADP from an intermediate
substrate in catabolism.
- used in glycolysis and citric acid cycle
During cellular respiration, H+ are pumped from the _________________ into the
_________________. - ANSWERS mitochondrial matrix, inter membrane
space
, Water is created during cellular respiration when O2 takes receives electrons and
takes H+ from the ________________ - ANSWERS matrix
ATP synthase - ANSWERS -uses the proton gradient to produce ATP through
oxidative phosphorylation
primary metabolism - ANSWERS essential for cell structure and function
secondary metabolism - ANSWERS synthesis of secondary metabolites that
are not necessary for cell structure and growth
lumen - ANSWERS inner space of thylakoid
Stroma - ANSWERS fluid portion of the chloroplast; outside of the thylakoids
what pigment is found in photosystem II? - ANSWERS P680
What reduces photosystem II? - ANSWERS water molecule, water molecule
leaves H+ in the lumen
how is oxygen produced during photosynthesis? - ANSWERS Water molecule
splits and donates electrons to photosystem II, only leaving O2 behind
What pigment is found in photosystem I? - ANSWERS P700
