BMSC 230-Practice Exam with
Guaranteed Pass Solutions 2026
Updated.
Which of the statements below about metabolism is INCORRECT?
a. most anabolic reactions, such as building larger molecules from small building block
molecules, do not require the input of energy
b. the energy produced from catabolism is captured in the form of ATP, the energy currency of
the cell
c. metabolism refers to the sum total of chemical reactions that lead to the breakdown or
synthesis of biomolecules
d. metabolism is the sum total of catabolism and anabolism - Answer a
which of the statements below about an amphibole pathway is CORRECT?
a. it is always interconnected with another pathway
b. it has both positively and negatively charged intermediates
c. it can proceed spontaneously in either direction
d. it can function both catholically and anabolically - Answer d.
Consider the following reaction, then choose the CORRECT statement about it:
phosphoenolpyruvate + ADP <--> pyruvate + ATP (delta G)= -17kJ/ mol
a. this reaction can readily proceed in either direction in the cell depending on the
concentrations of phosphoenolpyruvate and pyruvate
b. this reaction strongly favours the forward direction i.e. the production of pyruvate
c. the Key of this reaction is likely around 1.0
d. this reaction strongly favours the reverse reaction i.e. the production of
phosphoenolpyruvate because the degradation of ATP releases much energy - Answer b
which statement about ATP is incorrect?
a. while ATP is the main energy currency of the cell, the three other nucleoside triphosphate
(GTP, UTP, CTP) are sometimes used to provide energy
b. one reason why the hydrolysis of ATP releases so much energy is that the electrostatic
repulsion is reduced
c. ATP has two high energy, ester bonds
d. when we digest and metabolize fuels, the energy released is captured primarily in the form of
ATP - Answer c
, how much ATP does our body consume every day on average?
a. 40kg
b. 5kg
c. 500g
d. 40mg - Answer a
which of the following molecules is an activated carrier of electrons used in many biosynthetic
reactions?
a. NADH
b. FADH2
c. NADPH
d. Coenzyme A - Answer c
which of the following completes this sentence accurately?
Many activated carriers:
a. participate in isomerase reactions
b. are derived from B vitamins
c. are derived from vitamin C
d. are small inorganic molecules that function as coenzymes - Answer b
from a metabolic perspective, why is high-fructose corn syrup, which is used widely in the food
industry, a concern?
a. fructose is quickly phosphorylated to fructose-6-P, which leads to too much flux through
glycolysis and ends up causing too much fat synthesis
b. since there is no enzyme that can phosphorylate fructose, it can't be metabolised by
glycolysis, but is rather stored as sucrose which is toxic
c. fructose is rapidly metabolised by the liver in an unregulated fashion through to pyruvate.
some of pyruvate is converted to ethanol.
d. fructose is metabolised in a way that bypasses the main regulatory point in glycolysis. this
leads to excess flow through glycolysis, and ultimately too much fat synthesis - Answer d
what is the net number of ATP molecules produced for every one molecule of glucose
metabolised through glycolysis?
a. 2
b. 3
c. 4
d. 1 - Answer a
Guaranteed Pass Solutions 2026
Updated.
Which of the statements below about metabolism is INCORRECT?
a. most anabolic reactions, such as building larger molecules from small building block
molecules, do not require the input of energy
b. the energy produced from catabolism is captured in the form of ATP, the energy currency of
the cell
c. metabolism refers to the sum total of chemical reactions that lead to the breakdown or
synthesis of biomolecules
d. metabolism is the sum total of catabolism and anabolism - Answer a
which of the statements below about an amphibole pathway is CORRECT?
a. it is always interconnected with another pathway
b. it has both positively and negatively charged intermediates
c. it can proceed spontaneously in either direction
d. it can function both catholically and anabolically - Answer d.
Consider the following reaction, then choose the CORRECT statement about it:
phosphoenolpyruvate + ADP <--> pyruvate + ATP (delta G)= -17kJ/ mol
a. this reaction can readily proceed in either direction in the cell depending on the
concentrations of phosphoenolpyruvate and pyruvate
b. this reaction strongly favours the forward direction i.e. the production of pyruvate
c. the Key of this reaction is likely around 1.0
d. this reaction strongly favours the reverse reaction i.e. the production of
phosphoenolpyruvate because the degradation of ATP releases much energy - Answer b
which statement about ATP is incorrect?
a. while ATP is the main energy currency of the cell, the three other nucleoside triphosphate
(GTP, UTP, CTP) are sometimes used to provide energy
b. one reason why the hydrolysis of ATP releases so much energy is that the electrostatic
repulsion is reduced
c. ATP has two high energy, ester bonds
d. when we digest and metabolize fuels, the energy released is captured primarily in the form of
ATP - Answer c
, how much ATP does our body consume every day on average?
a. 40kg
b. 5kg
c. 500g
d. 40mg - Answer a
which of the following molecules is an activated carrier of electrons used in many biosynthetic
reactions?
a. NADH
b. FADH2
c. NADPH
d. Coenzyme A - Answer c
which of the following completes this sentence accurately?
Many activated carriers:
a. participate in isomerase reactions
b. are derived from B vitamins
c. are derived from vitamin C
d. are small inorganic molecules that function as coenzymes - Answer b
from a metabolic perspective, why is high-fructose corn syrup, which is used widely in the food
industry, a concern?
a. fructose is quickly phosphorylated to fructose-6-P, which leads to too much flux through
glycolysis and ends up causing too much fat synthesis
b. since there is no enzyme that can phosphorylate fructose, it can't be metabolised by
glycolysis, but is rather stored as sucrose which is toxic
c. fructose is rapidly metabolised by the liver in an unregulated fashion through to pyruvate.
some of pyruvate is converted to ethanol.
d. fructose is metabolised in a way that bypasses the main regulatory point in glycolysis. this
leads to excess flow through glycolysis, and ultimately too much fat synthesis - Answer d
what is the net number of ATP molecules produced for every one molecule of glucose
metabolised through glycolysis?
a. 2
b. 3
c. 4
d. 1 - Answer a
