BMSC 230 EXAM LATEST 2025 WITH
COMPLETE QUESTIONS and VERIFIED
ANSWERS GRADED A+|ASSURED
SUCCESS
How many protons are required to synthesize one ATP molecule by oxidative
phosphorylation? - CORRECT ANSWER-3
The ATP that is synthesized in the mitochondrial matrix: - CORRECT ANSWER-is
derived solely from the reaction catalyzed by ATP synthase.
ATP synthase is hypothesized to use a "binding change mechanism" which
,describes: - CORRECT ANSWER-how the rotation of the γ-subunit of ATP
synthase changes the conformation of the β-subunits, which facilitates ATP
synthesis.
Two products formed from the electron transport chain are - CORRECT
ANSWER-H2O and ATP
,Which statement about chemical uncouplers of oxidative phosphorylation -
CORRECT ANSWER-- They stimulate the breakdown of fat.
- They have promise as anti-obesity drugs.
- They can cause an increase in body temperature.
Which statement best describes the effect of high ADP levels on the rate of
oxidative phosphorylation? - CORRECT ANSWER-High ADP levels stimulate
pyruvate dehydrogenase and isocitrate dehydrogenase, thus providing high flux
through the citric acid cycle, lots of NADH and FADH2, and thus high rates of
oxidative phosphorylation.
Which statement about the regulation of the citric acid cycle is CORRECT? -
CORRECT ANSWER-Regulation of the cycle is necessary because the acetyl CoA
that enters the citric acid cycle is derived from other pathways, not just that
produced from pyruvate.
The high energy electrons that are generated during the citric acid cycle are
initially captured in the form of: - CORRECT ANSWER-NADH and FADH2
In addition to capturing high energy electrons through the oxidation of acetyl
CoA, another important function of the citric acid cycle is - CORRECT ANSWER-
to provide intermediates for the synthesis of other biomolecules such as glucose.
Which of the following is not a product of the citric acid cycle? - CORRECT
ANSWER-NAD+
The substrates for the first reaction of the citric acid cycle are: - CORRECT
ANSWER-acetyl CoA and oxaloacetate
, Which statement about the glyoxylate cycle - CORRECT ANSWER-- There is no
CO2 produced because there are no decarboxylation reactions.
- It allows some organisms to convert fats into carbohydrates.
- A major product of this pathway is succinate which can be used for the synthesis
of glucose.
Which of the conversions described below could be characterized as an
anaplerotic reaction? - CORRECT ANSWER-The conversion of pyruvate to
oxaloacetate.
How many CO2 molecules are released during one round of the citric acid cycle? -
CORRECT ANSWER-2
What does the "Warburg effect" refer to? - CORRECT ANSWER-the feature of
tumors to metabolize glucose to lactate instead of pyruvate, even in the presence
of sufficient oxygen
Which statement about the reaction catalyzed by the pyruvate dehydrogenase
complex - CORRECT ANSWER-- It connects glycolysis with the citric acid cycle.
- One of the products of the reaction, acetyl CoA, can enter the citric acid cycle
- This reaction is tightly regulated
Glycogen synthesis and glycolysis share this biomolecule as an intermediate: -
CORRECT ANSWER-Glucose-6-P
COMPLETE QUESTIONS and VERIFIED
ANSWERS GRADED A+|ASSURED
SUCCESS
How many protons are required to synthesize one ATP molecule by oxidative
phosphorylation? - CORRECT ANSWER-3
The ATP that is synthesized in the mitochondrial matrix: - CORRECT ANSWER-is
derived solely from the reaction catalyzed by ATP synthase.
ATP synthase is hypothesized to use a "binding change mechanism" which
,describes: - CORRECT ANSWER-how the rotation of the γ-subunit of ATP
synthase changes the conformation of the β-subunits, which facilitates ATP
synthesis.
Two products formed from the electron transport chain are - CORRECT
ANSWER-H2O and ATP
,Which statement about chemical uncouplers of oxidative phosphorylation -
CORRECT ANSWER-- They stimulate the breakdown of fat.
- They have promise as anti-obesity drugs.
- They can cause an increase in body temperature.
Which statement best describes the effect of high ADP levels on the rate of
oxidative phosphorylation? - CORRECT ANSWER-High ADP levels stimulate
pyruvate dehydrogenase and isocitrate dehydrogenase, thus providing high flux
through the citric acid cycle, lots of NADH and FADH2, and thus high rates of
oxidative phosphorylation.
Which statement about the regulation of the citric acid cycle is CORRECT? -
CORRECT ANSWER-Regulation of the cycle is necessary because the acetyl CoA
that enters the citric acid cycle is derived from other pathways, not just that
produced from pyruvate.
The high energy electrons that are generated during the citric acid cycle are
initially captured in the form of: - CORRECT ANSWER-NADH and FADH2
In addition to capturing high energy electrons through the oxidation of acetyl
CoA, another important function of the citric acid cycle is - CORRECT ANSWER-
to provide intermediates for the synthesis of other biomolecules such as glucose.
Which of the following is not a product of the citric acid cycle? - CORRECT
ANSWER-NAD+
The substrates for the first reaction of the citric acid cycle are: - CORRECT
ANSWER-acetyl CoA and oxaloacetate
, Which statement about the glyoxylate cycle - CORRECT ANSWER-- There is no
CO2 produced because there are no decarboxylation reactions.
- It allows some organisms to convert fats into carbohydrates.
- A major product of this pathway is succinate which can be used for the synthesis
of glucose.
Which of the conversions described below could be characterized as an
anaplerotic reaction? - CORRECT ANSWER-The conversion of pyruvate to
oxaloacetate.
How many CO2 molecules are released during one round of the citric acid cycle? -
CORRECT ANSWER-2
What does the "Warburg effect" refer to? - CORRECT ANSWER-the feature of
tumors to metabolize glucose to lactate instead of pyruvate, even in the presence
of sufficient oxygen
Which statement about the reaction catalyzed by the pyruvate dehydrogenase
complex - CORRECT ANSWER-- It connects glycolysis with the citric acid cycle.
- One of the products of the reaction, acetyl CoA, can enter the citric acid cycle
- This reaction is tightly regulated
Glycogen synthesis and glycolysis share this biomolecule as an intermediate: -
CORRECT ANSWER-Glucose-6-P
