BIOCHEM MODULE 7 EXAM
QUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
True or False: The ΔG value for a particular reaction is -78kJ/mol. This value indicates the reaction is
spontaneous. - ANSWER true
True or False: A biochemical metabolic pathway is a single reaction that converts starting material into
products. - ANSWER false
True or False: A biochemical metabolic pathway is a series reaction that converts starting material into
products. - ANSWER true
True or False: Three ATP molecules are used in the energy-investing stage of glycolysis. - ANSWER false
True or False: The citric acid cycle occurs in the presence of oxygen. - ANSWER true
True or False: The citric acid cycle occurs in the absence of oxygen. - ANSWER false
True or False: The β-oxidation pathway only degrades odd-numbered fatty acids. - ANSWER true
In total, how many ATP and/or NADH are produced in the glucose to pyruvate steps in glycolysis? -
ANSWER 2 ATP and 2 NADPH produced
In converting glucose to pyruvate, how many ATP or NADH are produced (or required) in the fructose-6-
phosphate to fructose-1,6-bisphosphate step in glycolysis? - ANSWER 1 ATP required
In converting glucose to pyruvate, how many ATP or NADH are produced (or required) in the glucose to
glucose-6-phosphate step in glycolysis? - ANSWER 1 ATP required
In converting glucose to pyruvate, how many ATP or NADH are produced (or required) in the
, glyceraldehyde 3-phosephate to 1,3-bisphosphoglycerate step in glycolysis? - ANSWER 2 NADH 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? - ANSWER 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? - ANSWER 2 ATP produced
What is the primary product of glycolysis? - ANSWER pyruvate
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 ___. - ANSWER hexokinase
In glycolysis, when glucose enters a cell, it is immediately phosphorylated to form glucose-6- phosphate.
The phosphate donor in this reaction is _______, and the enzyme is hexokinase. - ANSWER ATP
In glycolysis, when fructose-6-phosphate is preparing to split the phosphate donor in this reaction is ATP,
and the enzyme is ________. - ANSWER phosphofructokinase-1
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: - ANSWER substrate-level phosphorylation
Under anaerobic condition, to which compound is pyruvate converted? - ANSWER ethanol or lactate
The process that extracts energy as ATP but does not consume O2 or change the concentration of
NAD+/NADH: - ANSWER fermentation
How many reactions are in glycolysis? - ANSWER 10
The reactions of glycolysis take place in/on the ___. - ANSWER cytosol
QUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
True or False: The ΔG value for a particular reaction is -78kJ/mol. This value indicates the reaction is
spontaneous. - ANSWER true
True or False: A biochemical metabolic pathway is a single reaction that converts starting material into
products. - ANSWER false
True or False: A biochemical metabolic pathway is a series reaction that converts starting material into
products. - ANSWER true
True or False: Three ATP molecules are used in the energy-investing stage of glycolysis. - ANSWER false
True or False: The citric acid cycle occurs in the presence of oxygen. - ANSWER true
True or False: The citric acid cycle occurs in the absence of oxygen. - ANSWER false
True or False: The β-oxidation pathway only degrades odd-numbered fatty acids. - ANSWER true
In total, how many ATP and/or NADH are produced in the glucose to pyruvate steps in glycolysis? -
ANSWER 2 ATP and 2 NADPH produced
In converting glucose to pyruvate, how many ATP or NADH are produced (or required) in the fructose-6-
phosphate to fructose-1,6-bisphosphate step in glycolysis? - ANSWER 1 ATP required
In converting glucose to pyruvate, how many ATP or NADH are produced (or required) in the glucose to
glucose-6-phosphate step in glycolysis? - ANSWER 1 ATP required
In converting glucose to pyruvate, how many ATP or NADH are produced (or required) in the
, glyceraldehyde 3-phosephate to 1,3-bisphosphoglycerate step in glycolysis? - ANSWER 2 NADH 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? - ANSWER 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? - ANSWER 2 ATP produced
What is the primary product of glycolysis? - ANSWER pyruvate
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 ___. - ANSWER hexokinase
In glycolysis, when glucose enters a cell, it is immediately phosphorylated to form glucose-6- phosphate.
The phosphate donor in this reaction is _______, and the enzyme is hexokinase. - ANSWER ATP
In glycolysis, when fructose-6-phosphate is preparing to split the phosphate donor in this reaction is ATP,
and the enzyme is ________. - ANSWER phosphofructokinase-1
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: - ANSWER substrate-level phosphorylation
Under anaerobic condition, to which compound is pyruvate converted? - ANSWER ethanol or lactate
The process that extracts energy as ATP but does not consume O2 or change the concentration of
NAD+/NADH: - ANSWER fermentation
How many reactions are in glycolysis? - ANSWER 10
The reactions of glycolysis take place in/on the ___. - ANSWER cytosol
