BB 451 Exam 1 questions with verified
answers A+ graded
5 enzymes of pyruvate DH - correct answer ✔✔TPP, Lipoamide, CoA, FAD, NAD
2 molecules that can disrupt pyruvate DH and why - correct answer ✔✔arsenate
and mercury, both disrupt the sulfur in Lipoamide
lipoamide is disrupted by arsenate, what would you treat it with - correct answer
✔✔BAL
Pyruvate+NAD+CoAsh--> - correct answer ✔✔Acetyl Coa, nadh, co2
? ---> Acetyl COA, NADH, CO2 - correct answer ✔✔Pyruvate, NAD, Coash
In yeast, conversion of acetyl Coa may end at - correct answer ✔✔decarboxylation
why would acetyl Coa be converted to ethanol? - correct answer ✔✔no oxygen
IN yeast fermentation, what is NOT made - correct answer ✔✔NADH
If there is no oxygen present for yeast, what will happen to acetyl Coa? - correct
answer ✔✔decarboxylated to acetyl aldehyde, then converted to ethanol
,what damages mitochondria? - correct answer ✔✔byproducts of redox
which mitochondrial membrane is more permeable? - correct answer ✔✔outer
inner Mito membrane permeable to - correct answer ✔✔H2O, CO2, O2, CO
infoldings of inner membrane - correct answer ✔✔cristae
where does the citric acid cycle - correct answer ✔✔mitochondrial matrix
cataplerotic reactions - correct answer ✔✔fill up metabolic intermediates
oxaloacetate may be converted to - correct answer ✔✔aspartic acid, glucose
glutamic acid may be converted to - correct answer ✔✔alpha ketoglutarate
Citric acid cycle intermediates may be converted to - correct answer ✔✔amino
acids, fatty acids, nucleotides, sugars
reaction with a positive delta G - correct answer ✔✔malate to oxaloacetate
aconitase inhibited by - correct answer ✔✔fluoroacetate
, fluoroacetate - correct answer ✔✔converted to fluoroacetate by citrate synthase
2 molecules important for cataplerotic reactions - correct answer
✔✔oxaloacetate, alpha kg
the only substrate level phosphorylation of CA cycle - correct answer ✔✔succinyl
CoA to succinate
enzyme that catalyzes only substrate level phosphorylation of CA cycle - correct
answer ✔✔succinyl Coa synthetase
succinate dehydrogenase - correct answer ✔✔covalently linked to FAD, adds
electrons to release FADH2
which reaction of the citric acid cycle is similar to the first oxidation of fatty acids -
correct answer ✔✔succinate dehydrogenase
Fumarte+H2O--> - correct answer ✔✔L-malate
Allosteric regulator of CA cycle - correct answer ✔✔NAD, FAD available; also O2 is
limiting factor
Energy yield of the ca cycle - correct answer ✔✔30-38 atp/glucose
glyoxylate cycle occurs in - correct answer ✔✔plants and bacteria
answers A+ graded
5 enzymes of pyruvate DH - correct answer ✔✔TPP, Lipoamide, CoA, FAD, NAD
2 molecules that can disrupt pyruvate DH and why - correct answer ✔✔arsenate
and mercury, both disrupt the sulfur in Lipoamide
lipoamide is disrupted by arsenate, what would you treat it with - correct answer
✔✔BAL
Pyruvate+NAD+CoAsh--> - correct answer ✔✔Acetyl Coa, nadh, co2
? ---> Acetyl COA, NADH, CO2 - correct answer ✔✔Pyruvate, NAD, Coash
In yeast, conversion of acetyl Coa may end at - correct answer ✔✔decarboxylation
why would acetyl Coa be converted to ethanol? - correct answer ✔✔no oxygen
IN yeast fermentation, what is NOT made - correct answer ✔✔NADH
If there is no oxygen present for yeast, what will happen to acetyl Coa? - correct
answer ✔✔decarboxylated to acetyl aldehyde, then converted to ethanol
,what damages mitochondria? - correct answer ✔✔byproducts of redox
which mitochondrial membrane is more permeable? - correct answer ✔✔outer
inner Mito membrane permeable to - correct answer ✔✔H2O, CO2, O2, CO
infoldings of inner membrane - correct answer ✔✔cristae
where does the citric acid cycle - correct answer ✔✔mitochondrial matrix
cataplerotic reactions - correct answer ✔✔fill up metabolic intermediates
oxaloacetate may be converted to - correct answer ✔✔aspartic acid, glucose
glutamic acid may be converted to - correct answer ✔✔alpha ketoglutarate
Citric acid cycle intermediates may be converted to - correct answer ✔✔amino
acids, fatty acids, nucleotides, sugars
reaction with a positive delta G - correct answer ✔✔malate to oxaloacetate
aconitase inhibited by - correct answer ✔✔fluoroacetate
, fluoroacetate - correct answer ✔✔converted to fluoroacetate by citrate synthase
2 molecules important for cataplerotic reactions - correct answer
✔✔oxaloacetate, alpha kg
the only substrate level phosphorylation of CA cycle - correct answer ✔✔succinyl
CoA to succinate
enzyme that catalyzes only substrate level phosphorylation of CA cycle - correct
answer ✔✔succinyl Coa synthetase
succinate dehydrogenase - correct answer ✔✔covalently linked to FAD, adds
electrons to release FADH2
which reaction of the citric acid cycle is similar to the first oxidation of fatty acids -
correct answer ✔✔succinate dehydrogenase
Fumarte+H2O--> - correct answer ✔✔L-malate
Allosteric regulator of CA cycle - correct answer ✔✔NAD, FAD available; also O2 is
limiting factor
Energy yield of the ca cycle - correct answer ✔✔30-38 atp/glucose
glyoxylate cycle occurs in - correct answer ✔✔plants and bacteria
