chem 210 exam 7 Questions and Correct
Answers, 2024.
false
T/F: the delta G value for a particular reaction is -78kJ/mol. this value indicates the
reaction is NOT spontaneous
false
T/F a biochemical metabolic pathway is a single reaction that converts starting material
into products
false
T/F three ATP molecules are used in the energy-investing stage of glycolysis
false
T/F the citric acid cycle occurs in the absence of oxygen
true
T/F the beta-oxidation pathway degrades both even-numbered and odd-numbered fatty
acids
A. 2 ATP produced
in converting glucose to pyruvate, how many ATP or NADH are produced (or required)
in the 1, 3-bisphosphoglycerate to 3-phosphoglycerate step in glycolysis?
A. 2 ATP produced
B. 1 ATP required
C. 1 NADH produced
D. 2 NADH and 1 ATP produced
E. none of the above
C. 2 ATP produced
in converting glucose to pyruvate, how many ATP or NADH are produced (or required)
in the phosphoenolpyruvate to pyruvate step in glycolysis?
A. 1 ATP required
B. 1 ATP produced
C. 2 ATP produced
D. 2 ATP required
E. none of the above
A. glucose
what is the primary reactant of glycolysis?
A. glucose
B. glucose-6-phosphate
C. fructose
D. fructose-6-phosphate
E. hexokinase
A. hexokinase
in glycolysis, when glucose enters a cell, it is immediately phosphorylated to form
glucose-6-phosphate. the phosphate donor in this reaction is ATP, and the enzyme is
_____
A. hexokinase
, B. aldolase
C. CoA
D. phosphohexose isomerase
E. none of the above
A. substrate-level phosphorylation
in the last reaction of glycolysis, ATP is formed by the direct transfer of a phosphate
group from a metabolite to ADP. this process is referred to as:
A. substrate-level phosphorylation
B. protein phosphorylation
C. lipid phosphorylation
D. isomerization
E. photo-protein dephosphorylation
B. lactate
under anaerobic conditions, to which compound is pyruvate converted?
A. NADH
B. lactate
C. hexokinase
D. GAP
E. none of the above
C. 10
how many steps are in the glycolysis pathway?
A. 3
B. 6
C. 10
D. 12
E. 14
D. cytosol
the reaction of glycolysis take place in/on the______.
A. mitochondria
B. vacuoles
C. ribosome
D. cytosol
E. none of the above
B. phosphorylation reaction
how is ATP used in the initial steps of glycolysis?
A. isomerization reaction
B. phosphorylation reaction
C. protein production
D. lipid phosphorylation
E. none of the above
A. CAC
which of the following is a cyclic pathway?
A. CAC
B. PDH
C. glycolysis
Answers, 2024.
false
T/F: the delta G value for a particular reaction is -78kJ/mol. this value indicates the
reaction is NOT spontaneous
false
T/F a biochemical metabolic pathway is a single reaction that converts starting material
into products
false
T/F three ATP molecules are used in the energy-investing stage of glycolysis
false
T/F the citric acid cycle occurs in the absence of oxygen
true
T/F the beta-oxidation pathway degrades both even-numbered and odd-numbered fatty
acids
A. 2 ATP produced
in converting glucose to pyruvate, how many ATP or NADH are produced (or required)
in the 1, 3-bisphosphoglycerate to 3-phosphoglycerate step in glycolysis?
A. 2 ATP produced
B. 1 ATP required
C. 1 NADH produced
D. 2 NADH and 1 ATP produced
E. none of the above
C. 2 ATP produced
in converting glucose to pyruvate, how many ATP or NADH are produced (or required)
in the phosphoenolpyruvate to pyruvate step in glycolysis?
A. 1 ATP required
B. 1 ATP produced
C. 2 ATP produced
D. 2 ATP required
E. none of the above
A. glucose
what is the primary reactant of glycolysis?
A. glucose
B. glucose-6-phosphate
C. fructose
D. fructose-6-phosphate
E. hexokinase
A. hexokinase
in glycolysis, when glucose enters a cell, it is immediately phosphorylated to form
glucose-6-phosphate. the phosphate donor in this reaction is ATP, and the enzyme is
_____
A. hexokinase
, B. aldolase
C. CoA
D. phosphohexose isomerase
E. none of the above
A. substrate-level phosphorylation
in the last reaction of glycolysis, ATP is formed by the direct transfer of a phosphate
group from a metabolite to ADP. this process is referred to as:
A. substrate-level phosphorylation
B. protein phosphorylation
C. lipid phosphorylation
D. isomerization
E. photo-protein dephosphorylation
B. lactate
under anaerobic conditions, to which compound is pyruvate converted?
A. NADH
B. lactate
C. hexokinase
D. GAP
E. none of the above
C. 10
how many steps are in the glycolysis pathway?
A. 3
B. 6
C. 10
D. 12
E. 14
D. cytosol
the reaction of glycolysis take place in/on the______.
A. mitochondria
B. vacuoles
C. ribosome
D. cytosol
E. none of the above
B. phosphorylation reaction
how is ATP used in the initial steps of glycolysis?
A. isomerization reaction
B. phosphorylation reaction
C. protein production
D. lipid phosphorylation
E. none of the above
A. CAC
which of the following is a cyclic pathway?
A. CAC
B. PDH
C. glycolysis
