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BIO102 Queen's Exam Questions And
Answers
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
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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
What reduces photosystem I? - Answers✔PC transfers electron from PSII to PSI to neutralize it
The H+ are pumped from the ___________________ to the _____________________. -
Answers✔stroma, lumen
What the the purpose of cyclic electron transport? - Answers✔to produce more ATP, when more ATP is
needed that NADPH
____________________ and _____________________ goes into the light reaction and
____________________, _________________, and _________________ come out. - Answers✔energy,
H2O, O2, ATP, NADPH
What are the three phases of the calvin cycle? - Answers✔1. carbon fixation
2. reduction
3. regeneration
What enzyme is used in the first step of the calvin cycle? - Answers✔rubisco
At the end of the reduction phase of the calvin cycle, what molecule is produce? - Answers✔G3P
What goes into the Calvin Cycle? - Answers✔3CO2, 9 ATP, NADPH
What comes out of the calvin cycle? - Answers✔G3P, and RuBP is regenerated
C4 plants - Answers✔light dependent reaction occurs in a different cell than the calvin cycle